Editing HMCS Onondaga (section)

==Construction and career==
The submarine, built at [[Chatham Dockyard]] in England, was [[Keel laying|laid down]] on 18 June 1964, and [[Ship naming and launching|launched]] on 25 September 1965.<ref name=Moore63>Moore, p. 63</ref><ref name=mac2>Macpherson and Barrie, p. 269</ref> She was [[Ship commissioning|commissioned]] at Chatham on 22 June 1967.<ref name=Moore63/><ref name=mac2/> The submarine was named after the [[Onondaga (tribe)|Onondaga]] First Nations people, and was assigned the [[pennant number]] S 73.<ref name=Moore63/> The submarine cost C$16,000,000.<ref name=gazette1/>

''Onondaga'' was assigned to [[Maritime Forces Atlantic]] (MARLANT) as part of the [[First Canadian Submarine Squadron]] and served nearly her entire career in the [[North Atlantic]].<ref name=mac1/><ref>Ferguson, p. 265</ref> ''Onondoga'' spent time training with the Royal Navy after an exchange program was instituted in the 1960s that would see submarines from both the Royal Navy and Royal Canadian Navy spend time with each other's forces. This allowed Canadian submarines on intelligence-gathering missions. Beginning in the 1970s, Canada began underwater surveillance patrols in the western Atlantic, tracking Soviet sub and surface fleet vessels, especially the [[ballistic missile submarine]]s, usually in concert with a [[Canadair CP-107 Argus]] or [[Lockheed CP-140 Aurora]] patrol aircraft.<ref name=craven>{{cite journal |url=http://www.journal.forces.gc.ca/vo7/no4/craven-eng.asp |title=A Rational Choice Revisited – Submarine Capability in a Transformational Era |journal=Canada Military Journal |last=Craven |first=Michael |volume=7 |number=4 |date=Winter 2006 |issn=1492-0786}}</ref>

''Onondoga'' arrived at [[HMC Dockyard]] at [[Halifax, Nova Scotia]] on 18 January 1982 in preparation for her SOUP refit. The refit began on 25 June 1983 and was completed on 27 April 1984.<ref name=mac2/> Following the SOUP refit and the introduction of the Mark 48 torpedoes, the ''Oberon''s were considered fully operational and counted the same as other offensive fleet units in Maritime Command.<ref name=craven/>

Following the end of the [[Cold War]], the ''Oberon''s were retasked, performing patrols on behalf of federal institutions such as the [[Department of Fisheries and Oceans]] and the [[Solicitor General of Canada]] between 1991 and 1994.<ref name=craven/> For six months in 1994, the submarine served on the west coast.<ref name=mac1/> The delay of the introduction of the ''Victoria''-class submarines led to the ''Oberon''s working past their life expectancy.<ref name=craven/> During the [[Turbot War]], the ''Oberon''s were tasked with monitoring European fishing fleets off the [[Grand Banks of Newfoundland]]. Their presence served as a deterrent in the escalating crisis.<ref>Tracy, p. 249</ref>

''Onondaga'' was decommissioned by [[Canadian Forces Maritime Command|Maritime Command]] on 28 July 2000.<ref name=mac1/> She was the last ''Oberon''-class submarine operational in Canadian service.<ref name=mac1/> On decommissioning, ''Onondaga'' and her sister boats were left to await disposal in Halifax harbour.<ref name=Massarella114>Massarella, ''Monster Moves'', p. 114</ref>