During the First World War, the 26th Jacob's Mountain Battery fought with great distinction at Gallipoli, Egypt, Mesopotamia and Persia. After the war, it again saw service on the Northwest Frontier. During the Second World War, it fought in the Burma Campaign as part of the 17th Indian Division. In 1944, it became an exclusively Punjabi Muslim unit. In 1947, it was transferred to the Pakistan Army, where it became the senior battery of 1 Mountain Regiment, Royal Pakistan Artillery. The battery fought in the Kashmir War of 1948.