Editing Stratego (section)

===Japanese Military Chess===
[[File:Gunjin Shogi.jpg|thumb|''Gunjin Shogi'' (23-piece)]]
[[Japanese Military Chess]] (''Gunjin Shogi'') has been sold and played since as early as 1895, although it is not known by whom and when it was invented.<ref name=Takahashi-2016>{{cite journal |last1=Takahashi |first1=Hironor i|title=Military Chess in Japan and the World |journal=The Institute of Amusement Industry Studies Osaka University of Commerce No. 18 |location=JPN |date=2016 |url=https://ouc.repo.nii.ac.jp/?action=repository_uri&item_id=571&file_id=22&file_no=1}}</ref>{{rp|129–130}} Dr. Christian Junghans reported this game in ''Monatshefte'' magazine in Germany in 1905.  It seems, only after reading his article, Julie Berg took out a patent on a war game in London and Paris in 1907.<ref name=FR379625A>{{cite patent |country=FR |status=Patent |number=379625A |inventor=Julie Berg |fdate=June 24, 1907 |pubdate=November 13, 1907 |title=Jeu de la guerre}}</ref> Similarly, [[Hermance Edan]] took a patent for ''L'attaque'' game in 1909<ref name=FR396795A/> and sold them in 1910.<ref name=Takahashi-2016/>{{rp|154–158}}

The main differences between ''Gunjin Shogi'' and ''Stratego'' are:
* ''Gunjin Shogi'' needs a referee to resolve the battles of the pieces, which are kept face-down throughout the game.<ref name=tanken/>
* The Flag is placed only on the headquarters and a player who successfully occupied the headquarters of the opponent shall win the game.
* There are no Scout pieces. The Engineers and Spy have the same movement as the Scouts in ''Stratego''.
* Only flag and senior officers can occupy the opponent's headquarters.
* Engineer (analogue of miner) can remove mines and tanks.

There are at least three different versions of ''Gunjin Shogi'', distinguished by the number of pieces controlled by each player as well as the size of the board. The 23- and 31-piece versions are similar, influenced by the technology of World War I, and the 25-piece version is a more recent development, incorporating technologies developed during World War II.<ref name=tanken>{{cite web |url=https://tanken.com/gunjin.html |title=日本軍人将棋連盟ホームページにようこそ |lang=ja |trans-title=Welcome to the website of the Japan Military Shogi Federation |website=tanken.com |access-date=18 July 2023 |quote=駒や盤の取り方などは時代によって（あるいは製造元によって）多少異なるようです。第1次大戦後にはタンクや地雷が、第2次大戦後には毒ガスや飛行機、原爆が登場するなど、現実の戦争に応じて、次々と進化を遂げてきました。[Pieces and boards differ slightly depending on when or who manufactured them. After World War I, tanks and mines were included, and after World War II, poison gas, airplanes, and atomic bombs were added.]}}</ref>