In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
Q: Question: Does Belfast has a military base? Passage:James returned to the 1st Battalion, Glosters as a company commander in 1933 and from November 1934 to December 1936 he was a General Staff Officer (GSO) with Western Command. Promoted to major on 25 December 1936, he succeeded John Nichols, his fellow student at Camberley, as a brigade major with the 13th Infantry Brigade, The brigade was then commanded by Brigadier John Priestman until succeeded in September 1938 by Brigadier Reade Godwin-Austen. The brigade was serving in Palestine during the Arab revolt, before returning to England where it became part of the 5th Infantry Division, then serving under Northern Command. James held this post until January 1939. Promoted to brevet lieutenant colonel on 1 July 1938, on 10 January 1939 he transferred from the Gloucestershire Regiment to the Royal Sussex Regiment and receiving promotion in that regiment to lieutenant colonel, and, on the same date, became Commanding Officer (CO) of the 2nd Battalion, Royal Sussex. The battalion was then serving in Belfast, Northern Ireland, on internal security duties.

A:
The battalion was then serving in Belfast, Northern Ireland, on internal security duties