Mohr, Joan McGuire, The Czech and Slovak Legion in Siberia from 1917 to 1922.
Large numbers of Czechs and Slovaks defected on the Russian front and formed the Czechoslovak Legion, organised by Milan Rastislav Štefánik (a Slovak astronomer, general of the French army and a war hero).
Legion of Merit | French Foreign Legion | American Legion | Legion of Honour | Légion d'honneur | Roman legion | Legion of Super-Heroes | Military Order of the Loyal Legion of the United States | Legion | Arab Legion | Spanish Legion | Legion of Mary | Légion d'Honneur | Jewish Legion | The Royal British Legion | Royal Canadian Legion | legion | Condor Legion | The Last Legion | Roman Legion | Philippine Legion of Honor | Liberty Legion | Legion of Christ | Legion Field | Georgian Legion | Czechoslovak government-in-exile | Czechoslovak Academy of Sciences | Racine Legion/Tornadoes | National Legion of Decency | Miracle Legion |
Czechoslovak units and formations with overwhelming majority of Czechs (cca 82–85%) served with the Polish Army (Czechoslovak Legion), the French Army, the Royal Air Force, the British Army (the 1st Czechoslovak Armoured Brigade), and the Red Army (I Corps).