The British Indian infantry formation of the 7th Indian Infantry Brigade was formed in September 1939 under the British Government of India during the outbreak of World War II. It was raised by re-structuring and re-assigning the Poona Independent Brigade as the 7th Indian Infantry Brigade. In June 1940, this formation was renumbered 4th. Later in June 1940, a new 7th Indian Infantry Brigade was formed. It was initially allotted to the 5th Indian Infantry Division. Eventually the brigade was attached with the 4th Indian Infantry Division in September 1940.

The troops of the 7th Indian Infantry Brigade were sent to take part in the Sudan Campaign along with the rest of the 4th Indian Infantry Division. The infantry formation moved between the command of 5th Indian Infantry Division and the 4th Indian Infantry Division in April 1941. Later it was stationed in Cyprus. The brigade later fought in the Second Battle of El Alamein in the Western Desert Campaign during the Second World War.

Later in 1943, the 7th Indian Infantry Brigade was posted in Tunisia in 1943 and operated under the administration of 50th (Northumbrian) Infantry Division. It was again attached to the 4th Indian Infantry Division and took part in the Italian Campaign.

Formation of 7th Indian Infantry Brigade
Several British Indian infantry regiments were included as a part of the 7th Indian Infantry Brigade. These are mentioned as follows-
• 2/2nd Gurkha Rifles (September 1939 - May 1940)
• 3/9th Gurkha Rifles (May 1941 - January 1944)
• 4th Jammu and Kashmir Infantry (October 1940 - May 1941)
• 2nd Jammu and Kashmir Rifles (September 1941 - January 1942)
• 6/11th Sikh Regiment (February 1942 - April 1943)
• 8/8th Punjab Regiment (January 1942 - December 1943)
• 7/15th Punjab Regiment (April - May 1943)
• 1st Wiltshire Regiment (October 1943 - October 1944)
• 6/11th Sikh Regiment (June 1943 - August 1943)
• 2/7th Rajput Regiment (December 1943 - August 1945)
• 1/8th Gurkha Rifles (May 1944)
• 2/13th Frontier Force Rifles (December 1943 - August 1945)
• 2nd Green Howards (September 1944 - April 1945)
• 1st Royal Warwickshire Regiment (April 1945 - June 1945)
• 1/18th Royal Garhwal Rifles (March 1945 - April 1945)
• 8/8th Punjab Regiment (June 1945 - August 1945)
• 160th Field Regiment Royal Artillery (March 1945 - April 1945)
• 1st Anti Tank Regiment Indian Artillery (March 1945 - April 1945)
• Machine Gun Battalion 12th Frontier Force Regiment (March 1945 - April 1945)

Commanding Officers of 7th Indian Infantry Brigade
The most noted commanders of the 7th Indian Infantry Brigade are listed below-
• Brigadier Sydney A. H. Hungerford (September 1939 to September 1940)
• Brigadier Harold Rawdon Briggs (September 1940 to May 1942)
• Brigadier John A. Finlay (May 1942 to October 1942)
• Brigadier Arthur Holworthy (October 1942 to January 1943)
• Brigadier Osmond De T. Lovett (January 1943 to April 1943)
• Lieutenant Colonel Charles E. A. Firth (April 1943 to June 1943)
• Brigadier Osmond De T. Lovett (June 1943)