The Avenging Squad caused the massacre of an entire US battalion during World War 2 when their members, Eagle the Archer, Manbot, and the Buzzer scouted the area on Soldier Boy’s orders. This led an SS unit in finding their base and launched a sneak attack. Everyone in the battalion and the Avenging Squad died, except for Colonel Mallory, who would go on to found the Boys.
From – The Boys #53