Editing Operation Compass (section)

== Orders of battle ==
=== 10th Army ===

December 1940, detail taken from Montanari (1990) unless specified.{{sfn|Montanari|1990|pp=608–611}}
* '''Supreme Commander Italian Forces in North Africa''', Marshal [[Rodolfo Graziani]]
* '''10th Army''', General [[Italo Gariboldi]], from 23 December General [[Giuseppe Tellera]] ([[Killed in action]] [KIA] 7 February 1941)

==== Libyan Divisions Group ====
* '''Libyan Divisions Group''', headquarters in [[Sidi Barrani]] General [[Sebastiano Gallina]]
** '''[[1st Libyan Division (Italy)|1st Libyan Division]]''', at [[Al Maktilah]] (General Giovanni Cerio)
*** 1st Libyan Infantry Group, 3 × battalions, 1 × anti-tank company, [[Cannone da 47/32|47/32 mod. 1935]] anti-tank guns
*** 2nd Libyan Infantry Group, 3 × battalions, 1 × anti-tank company, 47/32 mod. 1935 anti-tank guns
*** 1st Libyan Artillery Group, 2 × groups [[8 cm FK M. 5|77/28 mod. 5]] field guns
*** II Mixed Engineer Battalion
*** Attached units
**** 1 artillery group from the [[2nd CC.NN. Division "28 Ottobre"]], [[Cannone da 75/27 modello 11|75/27 mod. 11]] field guns
**** 2 × batteries [[Cannone da 65/17 modello 13|65/17 mod. 13]] mountain guns
**** 1 × battery, 105/28 howitzers
**** 1 × artillery company, [[Cannone da 47/32|47/32 mod. 1935]] anti-tank guns
** '''[[2nd Libyan Division (Italy)|2nd Libyan Division]]''', between [[Ras el Dai]] and [[Alam el Tummar]] (General [[Armando Pescatori]])
*** 3rd Libyan Infantry Group, 4 × battalions, 1 × anti-tank company, [[Cannone da 47/32|47/32 mod. 1935]] anti-tank guns
*** 4th Libyan Infantry Group, 4 × battalions, 1 × anti-tank company, 47/32 mod. 1935 anti-tank guns
*** 2nd Libyan Artillery Group, 2 × groups [[8 cm FK M. 5|77/28 mod. 5]] field guns
*** I Mixed Engineer Battalion
*** Attached units
**** IX Tank Battalion L, with [[L3/35]] tankettes
**** 1 × group from the [[2nd CC.NN. Division "28 Ottobre"]], 75/27 mod. 11 field guns
**** 1 × group, 105/28 howitzers
**** 2 × batteries [[Cannone da 65/17 modello 13|65/17 mod. 13]] mountain guns
**** 1 × anti-tank company, [[Cannone da 47/32|47/32 mod. 1935]] anti-tank guns
** '''[[4th CC.NN. Division "3 Gennaio"]]''', in Sidi Barrani (General Fabio Merzari)
*** 228th CC.NN. Legion, 3 × battalions, 1 × battery, [[Cannone da 65/17 modello 13|65/17 mod. 13]] mountain guns, 1 × company, 81&nbsp;mm mortars
*** 250th CC.NN. Legion "Indomita", 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns, 1 × company, 81&nbsp;mm mortars
*** 204th Artillery Regiment, 2 × groups [[Cannone da 75/27 modello 11|75/27 mod. 11]] field guns, 1 × group, [[10 cm M. 14 Feldhaubitze|100/17 mod. 1914]] howitzers
*** IV CC.NN. Machine-Gun Battalion
*** IV CC.NN. Mixed Engineer Battalion
*** 4th CC.NN. Anti-Tank Company, 47/32 mod. 1935 anti-tank guns
*** Attached units
**** 1 × artillery group, 105/28 howitzers
**** 1 × artillery group, 75/27 C.K. anti-aircraft guns

==== XXI Corps ====
* '''[[XXI Army Corps (Italy)|XXI Corps]]''', headquarters in [[Buq Buq]] General [[Carlo Spatocco]]
** [[XX Tank Battalion L]], [[L3/35]] tankettes
** [[LXIII Tank Battalion L]], L3/35 tankettes
** X Machine Gun Squadrons Group
** 1 × motorcyclist company
** '''[[63rd Infantry Division "Cirene"]]''', at [[Rabia (Libya)|Alam el Rabia]] and [[Bir Bofafi]] (General Alessandro de Guidi)
*** [[157th Infantry Regiment "Cirene"]], 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns, 1 × company, 81&nbsp;mm mortars
*** 158th Infantry Regiment, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns, 1 × company, 81&nbsp;mm mortars
*** 45th Artillery Regiment, 2 × groups [[Cannone da 75/27 modello 11|75/27 mod. 11]] field guns, 1 × group, [[10 cm M. 14 Feldhaubitze|100/17 mod. 1914]] howitzers
*** LXIII Machine-Gun Battalion
*** LXIII Mixed Engineer Battalion
*** Attached units
**** I/21st Artillery Group, 105/28 howitzers
**** III/12th Artillery Group, 100/17 mod. 1914 howitzers
**** III/21st Artillery Group, 75/27 mod. 11 field guns
**** 2 × batteries 65/17 mod. 13 mountain guns
**** 202nd CC.NN. Anti-Tank Company, 47/32 mod. 1935 anti-tank guns
** '''[[64th Infantry Division "Catanzaro"]]''', at [[Alam Salamus]] (General [[Giuseppe Amico]])
*** [[141st Infantry Regiment "Catanzaro"]], 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns 1 × company, 81&nbsp;mm mortars
*** 142nd Infantry Regiment, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns 1 × company, 81&nbsp;mm mortars
*** 203rd Artillery Regiment, 2 × groups 75/27 mod. 11 field guns 1 × group, 100/17 mod. 1914 howitzers
*** LXIV Machine-Gun Battalion
*** LXIV Mixed Engineer Battalion
*** 64th Anti-Tank Company, 47/32 mod. 1935 anti-tank guns
** '''[[Maletti Group]]''', at [[Alam Nibeiwa]] and [[Alam el Iktufa]] (General [[Pietro Maletti]], KIA 9 December 1940)
*** I, V, XVII, XIX Libyan infantry battalions
*** I [[Auto-Saharan Company|Auto-Saharan Battalion]]
*** II Tank Battalion M11/39, [[4th Tank Infantry Regiment]] 37 × [[M11/39]] tanks
*** 1 × group, 65/17 mod. 13 mountain guns
*** 1 × group, 75/27 mod. 11 field guns
*** 2 × anti-tank companies 47/32 mod. 1935 anti-tank guns
*** 1 × company, 81&nbsp;mm mortars
*** 1 × battery, 105/28 howitzers

==== XXIII Corps ====
* '''[[XXIII Army Corps (Italy)|XXIII Corps]]''', HQ [[Sollum]], General [[Annibale Bergonzoli]]
** '''[[1st CC.NN. Division "23 Marzo"]]''', [[Bardia]] (General Francesco Antonelli)
*** 219th CC.NN. Legion, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns 1 × company, 81&nbsp;mm mortars
*** 233rd CC.NN. Legion, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns 1 × company, 81&nbsp;mm mortars
*** 201st CC.NN. Artillery Regiment, 2 × groups 75/27 mod. 11 field guns 1 × group, 100/17 mod. 1914 howitzers
*** CCI CC.NN. Machine-Gun Battalion
*** CCI CC.NN. Mixed Engineer Battalion
*** 201st CC.NN. Anti-Tank Company, 47/32 mod. 1935 anti-tank guns
*** Attached units
**** LXI Tank Battalion L, L3/35 tankettes
** '''[[2nd CC.NN. Division "28 Ottobre"]]''', at [[Sollum]] and [[Halfaya Pass]] (General Francesco Argentino)
*** 231st CC.NN. Legion, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns, 1 × company, 81 mm mortars
*** 238th CC.NN. Legion, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns 1 × company, 81 mm mortars
*** 202nd CC.NN. Artillery Regiment, 1 × group, 100/17 mod. 1914 howitzers 2 × groups detached
*** CCII CC.NN. Machine-Gun Battalion
*** CCII CC.NN. Mixed Engineer Battalion
** '''[[62nd Infantry Division "Marmarica"]]''', at [[Sidi Omar]] and [[Gabr du Fares]] (General [[Ruggero Tracchia]])
*** 115th Infantry Regiment, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns 1 × company, 81 mm mortars
*** 116th Infantry Regiment, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns, 1 × company, 81 mm mortars
*** 44th Artillery Regiment, 2 × groups 75/27 mod. 11 field guns, 1 × group, 100/17 mod. 1914 howitzers
*** LXII Machine-Gun Battalion
*** LXII Mixed Engineer Battalion
*** 62nd Anti-Tank Company, 47/32 mod. 1935 anti-tank guns
*** Attached units:
**** [[LXII Tank Battalion L]], L3/35 tankettes
**** 2 × batteries 65/17 mod. 13 mountain guns
**** 2 × anti-tank companies 47/32 mod. 1935 anti-tank guns

==== XXII Army Corps (Reserve) ====
* '''[[XXII Army Corps (Italy)|XXII Corps]]''', headquarters in [[Tobruk]] General [[Enrico Pitassi Mannella]]{{sfn|Montanari|1990|pp=612–613}}
** '''[[61st Infantry Division "Sirte"]]''', at [[Kambut|Gambut]] (General Vincenzo della Mura)
*** 69th Infantry Regiment, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns
*** 70th Infantry Regiment, 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns
*** 43rd Artillery Regiment, 2 × groups 75/27 mod. 11 field guns, 1 × group, 100/17 mod. 1914 howitzers
*** LXI Mixed Engineer Battalion
*** Attached units:
**** [[Ascari del Cielo|I Libyan Paratroopers Battalion "Diavoli neri"]]
**** II Paratroopers Battalion {{lang|it|"Fanti dell'aria"}}
** '''Artillery Command'''
*** 10th Army Corps Artillery Regiment
*** 20th Army Corps Artillery Regiment
** '''[[Babini Group]]''' at [[Marsa Lucch]] (General [[Valentino Babini]])
*** I Tank Battalion M11/39, [[4th Tank Infantry Regiment]], 37 × M11/39 tanks
*** [[III Tank Battalion M13/40]], [[32nd Tank Infantry Regiment]], 37 × [[M13/40]] tanks
*** XXI Tank Battalion L, L3/35 tankettes (disbanded at Tobruk late in December 1940, personnel used to raise the XXI Tank Battalion M13/40 at Benghazi in January 1941)
*** [[LX Tank Battalion L]], L3/35 tankettes
*** 1 × Bersaglieri motorcycle battalion
*** 1 × group, 75/27 mod. 11 field guns
*** 1 × group, 100/17 mod. 1914 howitzers

==== Cyrenaica military garrisons ====
* [[Tobruk]]{{sfn|Montanari|1990|p=611}}
** [[Royal Italian Army]]:
*** XXI Libyan Coastal Battalion
*** 2 × mixed engineer units
*** 2 × anti-aircraft groups, [[Breda Model 35|20/65 mod. 35]] anti-aircraft guns
** [[Royal Italian Navy]]
*** cruiser {{ship|Italian cruiser|San Giorgio||2}}
*** 10 × coastal batteries
** {{lang|it|[[Guardia alla Frontiera]]}}
*** Infantry: 2,300 men
*** Artillery: 2 × groups
* [[Bardia]]
** Royal Italian Army:
*** 1 × fortification machine-gun squadrons group
*** 3 × anti-tank companies, 47/32 mod. 1935 anti-tank guns
*** V Coastal Fortification Group
*** XVII Group, 75/27 mod. 11 field guns
*** 2 × batteries 75/27 mod. 11 field guns
** {{lang|it|Guardia alla Frontiera}}
*** Infantry: 2,500 men
*** Artillery: 17 × batteries
* [[Giarabub]]
** Royal Italian Army
*** 1 × motorised Libyan machine-gun company
*** 1 × fusiliers company
*** 4 × Libyan fortification machine-gun companies
*** 1 × section, 2 × 65/17 mod. 13 mountain guns
*** 1 × platoon, 4 × 20/65 mod. 35 anti-aircraft guns
*** 1/2 × anti-tank company, 6 × 47/32 mod. 1935 anti-tank guns

==== Libyan Sahara garrisons ====
* '''[[Kufra]] Oasis'''{{sfn|Montanari|1990|p=612}}
** 2 × Libyan fortification machine-gun companies
** 1 × [[Auto-Saharan Company]]
** 1 × Auto-Saharan Company, 20/65 mod. 35 anti-aircraft guns
* '''[[Jalu]] Oasis'''
** 1 × machine-gun battalion
** 1 × Libyan reserve battalion
** 1 × Auto-Saharan Company
** 1 × anti-tank company, 47/32 mod. 1935 anti-tank guns
** 1 × battery, 20/65 mod. 35 anti-aircraft guns

The 10th Army in Egypt consisted of 80,000 troops, 250 guns and 125 tanks.{{sfn|Christie|1999|p=86}}

==== Reinforcements ====
These reinforcements reached the 10th Army after the start of Operation Compass (data taken from Montanari, 1990).{{sfn|Montanari|1990|pp=330–332}}
* '''[[60th Infantry Division "Sabratha"]]''', took up positions at [[Derna, Libya|Derna]] (General Guido Della Bona)
** [[85th Infantry Regiment "Sabratha"]], 3 × battalions, 1 × battery, 65/17 mod. 13 mountain guns, 1 × company, 81&nbsp;mm mortars
** 86th Infantry Regiment, 3 × battalions, 1 × company, 81&nbsp;mm mortars
** 42nd Artillery Regiment, 2 × groups 75/27 mod. 11 field guns
** LXIV Machine-Gun Battalion
** LXIV Mixed Engineer Battalion
** Attached units
*** 60th Bersaglieri Motorcycle Company
*** XVIII Libyan Infantry Battalion
*** 1 × machine-gun battalion
*** 1 × group, 75/27 mod. 11 field guns
*** 3 × anti-tank companies 47/32 mod. 1935 anti-tank guns
*** 6 × batteries 65/17 mod. 13 mountain guns
*** 4 × batteries 20/65 mod. 35 anti-aircraft guns
*** 1 × chemical company
* '''Bignami Column''', took up positions at [[Mechili]] (General Mario Bignami, organised 22 January 1940)
** 10th Artillery Regiment, 1 × group, 75/27 mod. 11 field guns (from [[25th Infantry Division "Bologna"]])
** [[VI Tank Battalion M13/40]], [[33rd Tank Infantry Regiment]], 37 × M13/40 tanks
** XXI Tank Battalion M13/40, 37 × M13/40 tanks (Raised with personnel from the disbanded XXI Tank Battalion L in January 1941)
** XXV Motorised Machine Gun Battalion (from the 25th Infantry Division "Bologna")
** XXVII Motorised Machine Gun Battalion (from the [[27th Infantry Division "Brescia"]])
* [[10th Bersaglieri Regiment]]
** XVI, XXXIV, XXXV Bersaglieri battalions
** 1 × battery, 65/17 mod. 13 mountain guns
** 1 × company, 81&nbsp;mm mortars
* [[V Tank Battalion M13/40]], [[32nd Tank Infantry Regiment]], 37 × [[M13/40]] tanks, joined the [[Babini Group]] (Special Armoured Brigade)
* VII Anti-aircraft Group, [[Cannone da 75/46 C.A. modello 34|75/46 mod. 34]] anti-aircraft guns

=== Western Desert Force ===
Western Desert Force, 9 December 1940 Details taken from Christie (1999) and Montanari (1990) unless specified.{{sfn|Christie|1999|pp=65, 68–78, 82, 104}}{{sfn|Montanari|1990|pp=203–204}}
* Commander-in-Chief, Middle East (General Sir [[Archibald Wavell]])
* [[Western Desert Force]] (Lieutenant-General [[Richard O'Connor]])
** 1st Battalion, [[Royal Sussex Regiment|Royal Sussex]] (7th Indian Infantry Brigade battalion)
** 4th Battalion, 11th Sikh Regiment (7th Indian Infantry Brigade battalion)
** [[7th Royal Tank Regiment]] (Until 11 December, then 6th Australian Division)
** 2nd Heavy Anti-Aircraft Regiment Royal Artillery
** 7th Heavy Field Regiment [[Royal Artillery]]
** [[104th (Essex Yeomanry) Regiment, Royal Horse Artillery]]
** 6 × light anti-aircraft batteries
** [[7th Armoured Division (United Kingdom)|7th Armoured Division]] (Major General [[Michael O'Moore Creagh]])
*** [[4th Armoured Brigade (United Kingdom)|4th Armoured Brigade]] (Brigadier J. A. L. Caunter)
**** [[7th Queen's Own Hussars]] (−1 troop)
**** [[2nd Royal Tank Regiment]]
**** [[6th Royal Tank Regiment]]
*** [[7th Armoured Brigade (United Kingdom)|7th Armoured Brigade]] (Brigadier Hugh E. Russell)
**** [[3rd The King's Own Hussars]]
**** [[8th King's Royal Irish Hussars]]
**** [[1st Royal Tank Regiment]]
*** [[7th Support Group (United Kingdom)|Support Group]] (Infantry Brigade) (Brigadier [[William Gott]])
**** 1st Battalion [[King's Royal Rifle Corps]]
**** 2nd Battalion [[Rifle Brigade]]
**** [[1st Regiment Royal Horse Artillery]]
**** [[4th Regiment Royal Horse Artillery]]
*** [[11th Hussars (Prince Albert's Own)]] (Reconnaissance)
*** [[3rd Regiment Royal Horse Artillery]]
*** [[106th (Lancashire Yeomanry) Regiment, Royal Horse Artillery]] (2 × anti-tank batteries, 2 × anti-aircraft batteries)
*** 2nd (Cheshire) Field Squadron [[Royal Engineers]]
*** 141st Field Park Royal Engineers
*** 2 × [[Royal Air Force Regiment]] armoured car companies
** [[4th Indian Division]] (Major General [[Noel Beresford-Peirse]], until 11 December)
*** [[5th Indian Infantry Brigade]] (Brigadier [[Wilfrid Lewis Lloyd]])
**** 1st Battalion, [[Royal Fusiliers]]
**** 3rd Battalion, [[1st Punjab Regiment]]
**** 4th Battalion, [[6th Rajputana Rifles]]
**** 1× anti-tank company
*** [[11th Indian Infantry Brigade]] (Brigadier [[Reginald Savory]])
**** 1st Battalion, [[6th Rajputana Rifles]]
**** 2nd Battalion, [[Queen's Own Cameron Highlanders]]
**** 4th Battalion, [[7th Rajput Regiment]]
**** 1 × anti-tank company
*** [[16th Infantry Brigade (United Kingdom)|16th British Infantry Brigade]] (Brigadier [[Cyril Lomax]], until 11 December)
**** 2nd Battalion, [[Queen's Regiment]]
**** 1st Battalion, [[Argyll & Sutherland Highlanders]]
**** 2nd Battalion, [[Leicestershire Regiment]]
*** [[Central India Horse (21st King George V's Own Horse)]] (Reconnaissance)
*** 1st Battalion, [[Northumberland Fusiliers]] (machine gunners, 1 × company)
*** 1st Field Regiment Royal Artillery
*** 25th Field Regiment Royal Artillery
*** 31st Field Regiment Royal Artillery
*** 4th Field Squadron Royal Engineers
*** 12th Field Squadron Royal Engineers
*** 18th Field Squadron Royal Engineers
*** 21st Field Squadron Royal Engineers
*** 11th Field Park Royal Engineers
** [[7th Indian Infantry Brigade]] (Brigadier [[Harold Rawdon Briggs|Harold Briggs]], [[Mersa Matruh]] garrison, two battalions detached, until 11 December)
*** 2nd Battalion, [[11th Sikh Regiment]] (detached from)
** [[Selby Force]] (Brigadier Arthur Selby)
*** 3rd Battalion, [[Coldstream Guards]]
*** 1 × company [[Northumberland Fusiliers]] (Machine Gunners)
*** 1 × company, 1st Battalion, [[South Staffordshire Regiment]]
*** 1 × company, 1st Battalion, [[Cheshire Regiment]]
*** 1 × platoon, 1st Battalion [[Durham Light Infantry]]
*** 1 × troop, [[7th Queen's Own Hussars]]
*** 1 × section, 8th Field Regiment Royal Artillery
*** 1 × section, [[107th (South Nottinghamshire Hussars) Regiment, Royal Horse Artillery]]
** [[6th Australian Division]] (Major General [[Iven Mackay]], from 11 December)
*** [[16th Australian Infantry Brigade]] (Brigadier [[Arthur Allen (general)|Arthur Allen]])
**** [[2/1st Battalion (Australia)|2/1st Australian Battalion]]
**** [[2/2nd Battalion (Australia)|2/2nd Australian Battalion]]
**** [[2/3rd Battalion (Australia)|2/3rd Australian Battalion]]
*** [[17th Australian Infantry Brigade]] (Brigadier [[Stanley Savige]])
**** [[2/5th Battalion (Australia)|2/5th Australian Battalion]]
**** [[2/6th Battalion (Australia)|2/6th Australian Battalion]]
**** [[2/7th Battalion (Australia)|2/7th Australian Battalion]]
*** [[19th Australian Infantry Brigade]] (Brigadier [[Horace Robertson]])
**** [[2/4th Battalion (Australia)|2/4th Australian Battalion]]
**** [[2/8th Battalion (Australia)|2/8th Australian Battalion]]
**** [[2/11th Battalion (Australia)|2/11th Australian Battalion]]
*** [[2/6th Cavalry Commando Regiment (Australia)|6th Division Reconnaissance Regiment]] (Reconnaissance)
*** [[2/1st Field Regiment (Australia)|2/1st Field Regiment]]
*** [[2/2nd Field Regiment (Australia)|2/2nd Field Regiment]]
*** [[2/3rd Field Regiment]]
*** 2/1st Field Company, Royal Australian Engineers
*** 2/2nd Field Company, Royal Australian Engineers
*** 2/3rd Field Company, Royal Australian Engineers

The Western Desert Force consisted of about 31,000 soldiers, 120 guns, 275 tanks and sixty armoured cars. The 4th Indian Division was exchanged with the 6th Australian Division for the pursuit after the first part of Operation Compass.{{sfn|Christie|1999|p=86}}