British Army Jungle Warfare Training School

The British Army Jungle Warfare Training School (JWTS) of the Jungle Warfare Division (JWD) is an overseas military training establishment of the British Army, tasked with providing operational training in hot, tropical, and jungle warfare environments. It is part of British Forces Brunei (BFB), and the JWTS is headquartered at Medicina Lines (approximately 75 minute car journey from Brunei International Airport), near the Bruneian town Seria within Mukim Seria, Belait District, in the sultanate of Brunei Darussalam; whilst its actual training facility is located at Sittang Camp in the Tutong District.

The courses run by JWD which train the British Army and Royal Marines are:
 * Operational Tracking Instructors Course (OTIC)
 * Jungle Warfare Instructors Course (JWIC)

The original Jungle Warfare School was at Kota Tinggi, Johor, in Malaya. This operated from 1948, to 1971; it originally trained British and Commonwealth troops, and latterly Asian forces.