platoon
A military unit typically composed of two or more squads and led by a lieutenant.
He was entrusted with command of the platoon.
He commanded his platoon and headed to the front line.
The platoon set out before dawn.
They organized a new platoon with the recruits.
分隊 is a squad, a smaller unit than a 小隊 (platoon), and the two are easily confused because both share the character 隊.
中隊 is a company, made up of several 小隊 (platoons), so it is a larger unit than 小隊 despite the similar name.
大隊 is a battalion, a much larger unit than 小隊 (platoon), consisting of several companies.
platoon commander; section commander
From 小 (small) + 隊 (military unit).