The army of the republic also known as the Grand army of the republic was a army of Clones cloned from bounty hunter named Boba Fett Who ordered only a perfect clone for himself named Jango fett.
Ground Forces:
Command structure of regular forces
"...if the GAR were made up of average humans, you simply would not have a functioning army now. Clone troopers are optimized humans, and only two percent of the population could be as tough, resilient and aggressive as these men are."
―Mij Gilamar[src]
Grand Army—10 systems armies, a total of over 3,000,000 units, with Supreme Chancellor Palpatine as commander-in-chief.
Systems Army—2 Sector Armies (294,912 troops) led by a High Jedi General.
Sector Army—4 corps (147,456 troops) led by a Senior Jedi General.
Corps—4 legions (36,864 troops) led by a clone marshal commander and a Jedi General.
Legion/Brigade—4 regiments (9,216 troops) led by a senior clone commander and a Jedi General.
Regiment—4 battalions (2,304 troops) led by a clone trooper commander, clone regimental commander, and a Jedi Commander.
Battalion—4 companies (576 troops) led by a major.
Company—4 platoons (144 troops) led by a captain.
Platoon—4 squads (36 troops) led by a lieutenant.
Squad—9 soldiers led by a sergeant.
Command structure of special forces
Special Operations Brigade (SO BDE)—20 groups (10,000 men), commanded by Senior Jedi General Arligan Zey, made up of 10 battalions by one year after the Battle of Geonosis.
Commando Group—5 companies (500 men)
Members of Torrent Company
Company—5 troops (100 men).
Troop—5 squads (20 men).
Squad—4 men.
Clone Trooper(Rookie)
Clone trooper sergeant
Clone trooper lieutenant
Clone trooper captain
Clone trooper major
Clone trooper commander
Senior clone commander
Jedi Commander/Clone marshal commander
Jedi General
Senior Jedi General
High Jedi General
Ground and air vehiclesAll Terrain Attack Pod (AT-AP):
All Terrain Experimental Transport (AT-XT):
AV-7 Antivehicle Cannon:
Self-Propelled Heavy Artillery:
Stun tank:
Unstable Terrain Artillery Transport
Air Fleet:
Cruisers Small ships