The Thai Armed Forces have a combined manpower of 306,000 active duty personnel and another 245,000 active reserve personnel.[101]Thehead of the Thai Armed Forces(จอมทัพไทย,Chom Thap Thai) is the king,[102]although this position is only nominal. The armed forces are managed by theMinistry of Defence of Thailand, which is headed by the Minister of Defence (a member of thecabinet of Thailand) and commanded by theRoyal Thai Armed Forces Headquarters, which in turn is headed by theChief of Defence Forces of Thailand.[103]Thai annual defense budget almost tripled from 78 billion baht in 2005 to 207 billion baht in 2016, accounting for approximately 1.5% of 2019 Thai GDP.[104]Thailand ranked 16th worldwide in theMilitary Strength Indexbased on theCredit Suissereport in September 2015.