[SIZE=3]
1937 Organization[/SIZE]
Infantry Section
- 9 Privates: 8 rifles, 1 LMG
- 1 NCO: 1 SMG
- Total: 10 men, 8 rifles, 1 LMG, 1 SMG
Infantry Platoon
- 3 Sections: 10 men
- 1 command squad: 1 CO, 1 NCO, 3 runners
- Total: 35 men
Infantry Company
- 3 Platoons: 35 men
- 1 command squad: 4 messengers (4 carbines), mortar section (4 men, 1 mortar), antitank squad (10 men, 4 AT rifles/satchel charges, 1 horse). 18 men total.
- Total: 123 men.
Infantry Battalion
- 3 Companies: 123 men
- 1 machinegun platoon: 12xMGs, 66 men
- 1 mortar platoon: 57 men and 4x81mm mortars
- 1 supplies platoon: 34 men
- 1 battalion HQ: 6 men
- 1 battalion commander
- 1 battalion XO
- 1 battalion NCO
- Total: 535 men, 7 mortars, 12 HMGs
Brigade
- 5 Infantry Battalions: 535 men
- 1 Bicycle Battalion: 535 men
- 1 Artillery Battalion: 24 guns, 378 men
- 1 Scout Company: 123 men
- 1 AT gun section: 4 Ordnance QF 2-pounder guns, 4 trucks, 16 men
- 1 AA battery: 111 men, 4 large, 4 medium, 12 light AA guns, 16 trucks
- 1 Supplies company: 110 men
- 1 Brigade HQ: 35 men
- Total: 3,983 men
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[SIZE=3]
1940 Organization[/SIZE]
The 1940 Organization was a result of the Irish contribution to the League of Nations Afghan Field Force, starting in 1940. The Army staff bolstered the peacetime strength of the Irish I Brigade by adding a fourth platoon to the infantry company, and raised the battalion-level "machinegun platoon" to a full company. A transport company was officially added at the brigade level. Further changes were made in 1941 as a result of lessons learned during the deployment.
Infantry Section
- 9 Privates: 8 rifles, 1 LMG
- 1 NCO: 1 SMG
- Total: 10 men, 8 rifles, 1 LMG, 1 SMG
Infantry Platoon
- 3 Sections: 10 men, 1 LMG
- 1 command squad: 1 CO, 1 NCO, 3 runners
- Total: 35 men, 3 LMGs
Machinegun Platoon
- 2 machinegun squads: 14 men, 2 MGs
- 1 command squad: 1 CO, 1 NCO, 3 runners
- Total: 33 men, 4 LMGs
Infantry Company
- 4 Platoons: 35 men, 3 LMGs
- 1 command squad: 4 messengers (4 carbines), mortar section (4 men, 1 mortar), antitank squad (10 men, 4 AT rifles/satchel charges, 1 horse). 18 men total
- Total: 158 men, 12 LMGs, 1 mortar, 4 AT Rifles
Machinegun Company
- 3 machinegun platoons: 33 men, 4 LMGs
- 1 command squad: 4 messengers (4 carbines), mortar section (4 men, 1 mortar), antitank squad (10 men, 4 AT rifles/satchel charges, 1 horse). 18 men total
- Total: 117 men, 12 LMGs, 1 mortar, 4 AT Rifles
Infantry Battalion
- 3 infantry companies: 158 men, 12 LMGs, 1 60mm mortar, 4 AT Rifles
- 1 machinegun company: 117 men, 12 LMGs, 1 60mm mortar, 4 AT Rifles
- 1 mortar platoon: 57 men and 4x81mm mortars
- 1 supplies platoon: 34 men
- 1 battalion HQ: 6 men
- 1 battalion commander
- 1 battalion XO
- 1 battalion NCO
- Total: 688 men, 48 LMGs, 4 60mm mortars, 4 81mm mortars, 16 AT Rifles
Brigade
- 5 Infantry Battalions: 688 men, 4 60mm mortars, 4 81mm mortars, 16 AT Rifles
- 1 Bicycle Battalion: 688 men, 4 60mm mortars, 4 81mm mortars, 16 AT Rifles
- 1 Artillery Battalion: 24 guns, 378 men
- 1 Scout Company: 123 men
- 1 AT gun section: 4 Ordnance QF 2-pounder guns, 4 trucks, 16 men
- 1 AA battery: 111 men, 4 large, 4 medium, 12 light AA guns, 16 trucks
- 1 Supplies company: 110 men
- 1 Transport company: 169 men, 2 armoured cars, 82 trucks, 21 cars, 2 wrecker tractors, 20 motorcycles
- 1 Engineers company: 115 men
- 1 Brigade HQ: 35 men
- Total: 5,090 men, 288 MGs, 24 60mm mortars, 24 81mm mortars, 96 AT rifles, 4 AT guns, 12 AA guns