The Regiment soon saw its first battle when, in 1826, it took part in the Jat War where it helped in the conquest of Bharatpur, gaining it as a battle honour, the first battle honour awarded to the Gurkha units. In 1846 the First Anglo-Sikh War began and the Regiment was heavily involved in the conflict. It was awarded two battle honours for its involvement in the war; at the Battle of Aliwal which saw the Sikh forces, who had invaded British India.