History Main / EagleSquadron

* DC's [[Comicbook/{{Blackhawk}} Blackhawk Squadron]] is a MultinationalTeam version of this, to an extent. Many of the Blackhawks were, however, citizens of countries at war with the Axis powers, or occupied by them.
** Chuck fits the trope most exactly, as an American who joined the RAF before becoming a Blackhawk.

* Several strips from the British ''ComicBook/{{Commando}}'' comic book featured Czech or Polish pilots who flew for the British air force in the Second World War.

[[folder:Film -- Live Action]]

* Happens fairly often during ''Manga/TheFiveStarStories'', most notably during the Colus/Hagooda conflict of J.C. 2989 in Books II & III, which saw both sides recieving large amounts of support from foreign soldiers. While Hagooda initiall has the upper hand due to being secretly backed up by the governments of two major powers who have a beef with Colus, after the king is mortally wounded and his [[ArtificialHuman Fatima]] partner is killed by one of the "Mercenary" batallions serving Hagooda, Colus sees a massive influx of volunteers from allied nations coming in to join the fight. What makes this interesting is that some of said volunteers are actually members of foreign royalty or high officials, namely Emperor Amaterasu of Delta Belune and President Mission Routh of the Trun Union, who are participating due to a debt of honor they owe the king for his assistance during the events of Book I, but decline to directly involve their nations' military forces in the war, bringing only select members of their Imperial or Presidential Guards.

* Similar to the Korean War example above, there are a fair number of Russians fighting in the current War in Donbas on the side of the separatists. And like the Chinese volunteers, they tend to cross the border surprisingly well equipped. Entire units of Russian troops have showed up wearing their Russian uniforms, except with all the insignia removed, and driving modern Russian tanks, except with the insignia pained over. Ukrainian loyalists call them "little green men", while the Russian-speaking Donbas separatists call them "polite people". Russian news media even [[https://www.npr.org/sections/parallels/2014/09/08/346735504/some-in-russia-admit-their-troops-volunteer-in-ukraine acknowledges the deaths of Russian soldiers in the conflict, but calls them "volunteers" who joined the fighting while off-duty]]. One of the "volunteers" photographed in Ukraine was even identified as being a high-ranking Russian Spetsnaz general.

* Eight years after initially annexing Crimea and moving into Donbas (see above), Russia dropped all pretenses and launched a full invasion of Ukraine in “defense” of the Donbas republics, resulting in them facing this trope from the other side. Volunteer battalions taking up arms for Ukraine include over 20,000 volunteers from 52 countries, including Belarus [[note]]Belarusian president Alexander Lukashenko is a Russian ally, whose three-decade rule of the country was disputed by mass protests in 2020[[/note]], Georgia [[note]]A victim of Russian invasion in 2008 and fellow aspirant to Western integration[[/note]], and several NATO countries who can’t officially join the fighting for fear of conflict escalation and possible nuclear war. Russia has countered and attempted to cushion their losses by recruiting soldiers from Syria, the Central Africa Republic, and Belarus, the last of which Russia has been trying to elicit more direct involvement. There also exists a '"Freedom of Russia" Legion', consisting of Russian defectors fighting on Ukraine’s behalf.

* ''LightNovel/KnightsAndMagic'': The Silver Phoenix Knights rename themselves the Silver Phoenix Merchant Association to rescue Princess Eleanora of Kuscheperca, and then to fight alongside TheRemnant of Kuscheperca's knights.

[[folder:Light Novels]]
* ''LightNovel/KnightsAndMagic'': The Silver Phoenix Knights rename themselves the Silver Phoenix Merchant Association to rescue Princess Eleanora of Kuscheperca, and then to fight alongside TheRemnant of Kuscheperca's knights.
[[/folder]]

* ''Literature/{{Victoria}}'' sees both sides in the war between [[LadyLand Azania]] and the [[TheFundamentalist Northern Confederation]] receiving assistance from foreign volunteers. Conservatives in the New Confederacy contribute the Jefferson Davies Brigade to the Confederation's forces, whereas the Mexicans aid the Azanians.

* ''633 Squadron'' features Creator/CliffRobertson as an American pilot in the RAF in 1944. He tells a Norwegian refugee that before the war he was a barnstormer, and he signed up because he needed something to do after the barnstorming company folded. The film is silent on why he stayed on with the RAF after Pearl Harbor.

* ''videoGame/RiseOfTheReds'': One AscendedFanfic introduced the Legion of Solidarity, a Russian-led peacekeeping unit composed of volunteers from the Federation's allies. The Brown Berets, as they were called, fought in Eastern Europe, Ukraine, Africa and distinguished themselves through their unexpected level of gallantry during the Russo-European War, but their legacy was overshadowed by Aleksandr's Shock Divisions over the years.