The 400th Raider Infantry Battalion (Indonesian: Yonif Raider 400/Banteng Raiders) is one of the 42 active Indonesian Army Raider Infantry Battalions. It was founded on 23 March 1953 and was transformed into its present form on Army Day, 22 December 2002 - one of the first generation Raider Battalions to be raised. One of the Banteng Raiders honorific honors the battalion being raised in response towards the threat posed by the Darul Islam's armed wing, the Tentara Islam Indonesia, in its area of operations as part of Kodam IV/Diponegoro territorial command, and its origins date back to 1950. It also took part in the events following the 1965 30 September Movement, wherein infantrymen from the Battalion were operationally deployed to Jakarta. (Ironically, the leader of the movement. Lt Col