1st Czechoslovak Army Corps in the Soviet Union

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1st Czechoslovak Army Corps První československý armádní sbor Prvý československý armádny zbor
Banner of the 1st Czechoslovak Army Corps
Active	5 May 1944 (1944-05-05)–15 May 1945 (1945-05-15)
Country	Czechoslovakia  Soviet Union
Allegiance	Czechoslovak government-in-exile
Branch	Red Army[citation needed]
Type	Corps
Size	16,171 (September 1944)[1]
Part of	1st Ukrainian Front, later 4th Ukrainian Front
Motto(s)	"Věrni zůstaneme" Loyal We Will Remain
Engagements	World War II Eastern Front Dnieper–Carpathian Offensive Battle of the Dukla Pass Western Carpathian offensive Moravia–Ostrava offensive Prague Offensive
Commander	Jan Kratochvíl (1944) Ludvík Svoboda (1944–1945) Karel Klapálek (1945)

The 1st Czechoslovak Army Corps (Czech: První československý armádní sbor, Slovak: Prvý československý armádny zbor), also known as Svoboda's Army^[2] (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.^[3]

The corps was the largest of the Czechoslovak units that fought on the Soviet side on the Eastern Front.