75 years ago, on June 21, 1941, the BM-13 missile launchers, also known as Katyusha, went into service in the Red Army.
The USSR government signed the relevant document just hours before the start of the Great Patriotic War. Within a week after the Great Patriotic War began, the world's first rocket artillery battery was formed. It included seven machines.
BM-13 were first used in a battle on July 14, 1941 at Orsha railway station. Legendary Katyushas participated in all major operations during the war and was considered a most formidable weapon by the enemy.
Please watch video for some historical footage.