A section is a military sub-subunit. It usually consists of between 6 and 20 personnel. NATO and U.S. doctrine define a section as an organization "larger than a squad, but smaller than a platoon." As such, two or more sections usually make up an army platoon or an air force flight.
U.S. Army and Indian Army soldiers, numbering roughly the size of a section, during a military exercise
A Wehrmacht infantry Gruppe with the MG 34 in the light machine gun role
In military terminology, a squad is among the smallest of military organizations and is led by a non-commissioned officer. NATO and U.S. doctrine define a squad as an organization "larger than a team, but smaller than a section." while U.S. Army doctrine further defines a squad as a "small military unit typically containing two or more fire teams." In American usage, a squad consists of eight to fourteen soldiers, and may be further subdivided into fireteams.
A squad of Romanian Land Forces soldiers with CBRN gear during a military exercise
A Romanian squad of a TAB-77 APC in 2010. This is a typical Soviet arrangement, with a PK general purpose machine gun and a RPK light machine gun in the center and two soldiers with AK-47 assault rifles and one RPG-7 grenade launcher on the flanks. Another soldier provides liaison or extra firepower where needed.