Question: How many troops does the mission that Train Advise Assist Command - South is a part of advise and assist?

Related documents: [0]  [DOC] Train Advise Assist Command – South (TAAC – South) is a multinational military formation, part of NATO's Resolute Support Mission within Afghanistan. It is the former Regional Command South of the International Security Assistance Force (ISAF). [END] 
[1]  [DOC] Resolute Support Mission or Operation Resolute Support is a NATO-led train, advise and assist mission consisting of over 13,000 troops in the Islamic Republic of Afghanistan, which began on January 1, 2015. It is a follow-on mission to the International Security Assistance Force (ISAF) which was completed on December 28, 2014.<ref name="NATO 30/01"> </ref> Its current commander is U.S. Army General John W. Nicholson Jr. who replaced U.S. Army General John F. Campbell on 2 March 2016. [END]  
Answer: 13,000
13,000