Claim: 1st Czechoslovak Army Corps in the Soviet Union is part of the 4th Ukrainian Front and has participated in the Western Front of World War II.
Evidence: The 1st Czechoslovak Army Corps (Czech: První československý armádní sbor, Slovak: Prvý československý armádny zbor), also known as Svoboda's Army (Czech: Svobodova armáda, after its commander Ludvík Svoboda), was a military formation of the Czechoslovak Army in exile fighting on the Eastern Front alongside the Soviet Red Army in World War II. 
Eastern Front (World War II)