The 1st Malaya Infantry Brigade was a regular infantry brigade formed in 1939 with its headquarters in Singapore immediately after the outbreak of hostilities in Europe. The Brigade participated in the Battle of Singapore against the Japanese until the surrender of the garrison in February 1942.
The 12th Indian Infantry Brigade was an infantry brigade at the outbreak of the Indian Army during World War II. It was sent to Singapore in August 1939 and took part in the Malayan Campaign before going into captivity with the Fall of Singapore in February 1942.
The 1st (Risalpur) Cavalry Brigade was a cavalry brigade of the British Indian Army formed in 1906 as a result of the Kitchener Reforms. It remained in India during the First World War but took an active part in the Third Anglo-Afghan War in 1919.
The 2nd Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II. It was formed in Rawalpindi in September 1939. In October 1940, it was renamed 16th (Independent) Indian Infantry Brigade in November 1941, and left India for Burma. The brigade was caught in the Battle of Sittang Bridge where it suffered heavy losses. Instead of being reformed in September 1942, it was renamed yet again, this time to 116th Indian Infantry Brigade. Attached to the 39th Indian Infantry Division it now provided specialised jungle conversion training. An infantry battalion would spend from four to six months with the brigade, before being sent to the front to replace a tired battalion in one of the fighting divisions.
The 3rd Indian Infantry Brigade was an Infantry formation of the Indian Army during World War II. It was formed at Jhelum in India in September 1939. In August 1943, it was renamed the Frontier Reserve Brigade
The 155th Indian Infantry Brigade was an infantry brigade of the Indian Army during the Second World War.
The 5th Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II. It was converted from the 9th Indian Infantry Brigade in September 1939, and assigned to the 4th Indian Infantry Division. The brigade first moved to Egypt and took part in the early battles in North Africa. Then in 1941, it moved to the Sudan with the 5th Indian Infantry Division. Returning to 4th Indian Division command it took part in the Syria-Lebanon Campaign. The brigade then returned to North Africa coming under command of the 5th and 10th Indian Infantry Divisions, and the 50th (Northumbrian) Infantry Division and the 51st (Highland) Infantry Division in the Campaign in Tunisia. The brigade once more returned to the 4th Division for the Italian Campaign and the Greek Civil War.
The 15th Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II. It was formed in September 1940, at Secunderabad in India and assigned to the 9th Indian Infantry Division. Between February and March 1941, it was attached to the 10th Indian Infantry Division, before returning to the 9th in March 1941 and sailing for Malaya. Once in Malaya the brigade was assigned to the 11th Indian Infantry Division. During the Malayan Campaign after the Battle of Jitra and the Battle of Kampar it absorbed the remnants of the 6th Indian Infantry Brigade in December 1941. The brigade eventually surrendered with the rest of the III Indian Corps after the Battle of Singapore 15 February 1942.
The 9th Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II. Before the war the 9th (Jhansi) Infantry Brigade was a peacetime formation in Meerut district. This brigade was redesignated the 5th Indian Infantry Brigade and a new 9th Brigade was then formed all in September 1939. The new brigade was assigned to the 5th Indian Infantry Division in June 1940 to January 1944. It then spent February attached to the 7th Indian Infantry Division before returning to the 5th Division. The brigade spent two other short periods away from the 5th Division it was attached to the 17th Indian Infantry Division between March and April 1945 and was with the 19th Indian Infantry Division in April 1945, and returned to the 5th for the rest of the war.
The 33rd Indian Infantry Brigade was an infantry brigade of the British Indian Army that saw active service in the Indian Army during the Second World War, notably in the Burma Campaign.
The 34th Indian Brigade was an infantry brigade of the British Indian Army that saw active service in the Mesopotamian campaign in the Indian Army during the First World War. It was reformed for the Second World War as the 34th Indian States Forces Infantry Brigade.
The 51st Indian Infantry Brigade was an infantry brigade of the British Indian Army that saw active service in the Indian Army during the Second World War. It took part in the Arakan Campaign and in the immediate post-war period reoccupied Malaya.
The 4th Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II. It was formed in September 1939, as the 7th Indian Infantry Brigade and renumbered 4th in June 1940, The brigade was assigned to HQ Rawalpindi District on formation. Then posted to the 26th Indian Infantry Division in April 1942. The brigade also served with the 14th Indian Infantry Division between March and April 1943, and them returned to the 26th Division, where it remained for the rest of the war apart from a short attachment with the 82nd Infantry Division in April 1945.
The 10th Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II. It was formed in September 1939. In June 1940 it was assigned to the 5th Indian Infantry Division and in September 1940, sailed for East Africa. The brigade spent time attached to other formations, the 4th Indian Infantry Division between June 1940 and March 1941, and the British 10th Armoured Division between March and June 1942, where it was destroyed during the Battle of Gazala. A new brigade was formed in Egypt and assigned to the 10th Indian Infantry Division, with which it fought in the Italian Campaign from April 1944 until the end of the war.
The 21st Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II.
The 34th Indian State Forces Infantry Brigade was an Infantry formation of the Indian Army during the Second World War.
The Landi Kotal Brigade was an infantry formation of the Indian Army during World War II. It was formed in 1920, for service on the North West Frontier. It was normal practice for newly formed battalions to be posted to the North West Frontier for service before being sent to Africa, Burma or Italy.
The 2nd Malaya Infantry Brigade was a regular infantry brigade formed in 1940 with its headquarters in Singapore following the wartime expansion and reinforcement of Malaya Command. The Brigade participated in the Malayan Campaign and the Battle of Singapore against the Japanese until the surrender of the garrison in February 1942.
The Order of battle, Keren 1941 shows Italian army forces that participated in the Battle of Keren from February to March 1941 and British troops in Sudan on 20 January 1941, which participated in military operations against Eritrea during the East African Campaign 1940–1941.
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