Phayap Army
Phayap Army was the Thai force that invaded the Shan States of Burma on 10 May 1942 during the Burma Campaign of World War II.
Order of battle of Phayap Army 1942
Phayap Army - Lieutenant General Charun Rattanakun Seriroengrit- 2nd Infantry Division - Major General Luang Phairirayordejd
- * 4th Infantry Regiment which consisted of
- ** 10th Infantry Battalion
- ** 11th Infantry Battalion
- ** 12th Infantry Battalion
- * 5th Infantry Regiment which consisted of
- ** 13th Infantry Battalion
- ** 14th Infantry Battalion
- ** 15th Infantry Battalion
- * 12th Infantry Regiment which consisted of
- ** 28th Infantry Battalion
- ** 29th Infantry Battalion
- ** 33rd Infantry Battalion
- * 4th Artillery Battalion
- * 5th Artillery Battalion
- * 6th Artillery Battalion
- * Attached:
- ** 5th Cavalry Battalion / Cavalry Division
- ** Tank squadron / Armoured Regiment
- 3rd Infantry Division - Major General Phin Choonhavan
- * 7th Infantry Regiment which consisted of
- ** 19th Infantry Battalion
- ** 20th Infantry Battalion
- ** 21st Infantry Battalion
- * 8th Infantry Regiment which consisted of
- ** 17th Infantry Battalion
- ** 18th Infantry Battalion
- ** 52nd Infantry Battalion
- * 9th Infantry Regiment which consisted of
- ** 25th Infantry Battalion
- ** 26th Infantry Battalion
- ** 27th Infantry Battalion
- * 7th Artillery Battalion
- * 8th Artillery Battalion
- * 9th Artillery Battalion
- * Motorcycle Reconnaissance Squadron
- * Tank squadron
- 4th Infantry Division - Colonel Luang Haansongkhram
- * 3rd Infantry Regiment which consisted of
- ** 4th Infantry Battalion
- ** 6th Infantry Battalion
- ** 8th Infantry Battalion
- * 13th Infantry Regiment which consisted of
- ** 30th Infantry Battalion
- ** 31st Infantry Battalion
- ** 34th Infantry Battalion
- * 3rd Artillery Battalion
- * 10th Artillery Battalion
- Cavalry Division - Lieutenant Colonel Thwuan Wichaikhatkha
- * 35th Cavalry Regiment which consisted of
- ** 3rd Cavalry Battalion
- ** 5th Cavalry Battalion
- * 46th Cavalry Regiment which consisted of
- ** 4th Cavalry Battalion
- ** 6th Cavalry Battalion
- Tank Battalion
- 12th Independent Cavalry Regiment which consisted of
- * 1st Cavalry Battalion
- * 2nd Cavalry Battalion
- 35th Infantry Battalion
- 1st Engineer Battalion
- 2nd Engineer Battalion
- 3rd Engineer Battalion
- 4th Engineer Battalion
- 1st Artillery Battalion
- 11th Artillery Battalion
- Phayap Army AA Battalion
- Phayap Army Transport Battalion
- Phayap Army Water Transport Battalion
Reorganization
- The 17th Infantry Regiment which consisted of
- * 32nd Infantry Battalion
- * 35th Infantry Battalion
- * 39th Infantry Battalion
Nevertheless, the RTA created the following units to replace the cavalry units in the Phayap Army:
- 11th Heavy Machine Gun Battalion
- 1st Machine Gun Battalion
- 2nd Machine Gun Battalion
- 27th Artillery Battalion
- 29th Artillery Battalion
2nd Army
In 1943, RTA created The 2nd Army which consisted of
- 1st Division which consisted of
- * 1st Infantry Regiment which consisted of
- ** 1st Infantry Battalion
- ** 3rd Infantry Battalion
- ** 9th Infantry Battalion
- * 2nd Infantry Regiment which consisted of
- ** 2nd Infantry Battalion
- ** 7th Infantry Battalion
- ** 37th Infantry Battalion
- ** 45th Infantry Battalion
- 1st Cavalry Battalion
- 1st Artillery Battalion
- 7th Division consisted of
- * 19th Infantry Regiment which consisted of
- ** 58th Infantry Battalion
- ** 59th Infantry Battalion
- * 20th Infantry Regiment
- ** 60th Infantry Battalion
- ** 61st Infantry Battalion
- * 21st Infantry Regiment
- ** 62nd Infantry Battalion
- ** 63rd Infantry Battalion
- ** 64th Infantry Battalion
- * 12th Infantry Regiment consisted of
- ** 28th Infantry Battalion
- ** 65th Infantry Battalion
- * 6th Inf. Reg consisted of
- ** 29th Inf. Bat. - separated from the 12th Inf. Reg
- ** 66th Inf. Bat.
- ** 67th Inf. Bat.
37th Division
- 37th Division
- * 35th Cavalry Regiment - move from Phayap Army - consisted of
- ** 3rd Cavalry Battalion
- ** 5th Cavalry Battalion
- * the 108th Infantry Regiment
- * the 9th Infantry Regiment - move from Phayap Army
- ** 25th Infantry Battalion
- ** 26th Infantry Battalion
- ** 27th Infantry Battalion
Demobilization
30 October 1945: The following units were dissolved and demobilized
- 11th Heavy Machine Gun Battalion
- 1st Machine Gun Battalion
- 2nd Machine Gun Battalion
- 27th Artillery Battalion
- 29th Artillery Battalion
- Phayap Army HQ
- 2nd Army
- 7th Division
- 37th Division
- 18th Mixed Brigade at 4 States of Melayu
- 20th Infantry Regiment
- 107th Infantry Regiment.
- 4th Cavalry Battalion
- 6th Artillery Battalion
- 14th Artillery Battalion
- 32nd Infantry Battalion
- 33rd Infantry Battalion
- 34th Infantry Battalion
- 35th Infantry Battalion
- 54th Infantry Battalion
- 56th Infantry Battalion
- 40th Infantry Battalion
- 41st Infantry Battalion
Postwar Reorganization
- 1st Army Circle consisted of
- * the 1st Infantry Regiment - which consisted of
- ** 1st Infantry Battalion
- ** 3rd Infantry Battalion
- ** 9th Infantry Battalion
- * the 11th Infantry Regiment - Renamed from the 2nd Infantry Regiment - which consisted of
- ** 2nd Infantry Battalion
- ** 7th Infantry Battalion
- ** 37th Infantry Battalion
- ** 45th Infantry Battalion
- 2nd Army Circle consisted of
- * 2nd Infantry Regiment - Renamed from the 3rd Infantry Regiment consisted of
- ** 4th Infantry Battalion
- ** 6th Infantry Battalion
- ** 8th Infantry Battalion
- * 12th Infantry Regiment - Renamed from the 4th Infantry Regiment consisted of
- ** 10th Infantry Battalion
- ** 11th Infantry Battalion
- ** 12th Infantry Battalion
- 3rd Army Circle consisted of
- * the 3rd Infantry Regiment - Renamed from the 7th Infantry Regiment consisted of
- ** 19th Infantry Battalion
- ** 20th Infantry Battalion
- ** 21st Infantry Battalion
- * 13th Infantry Regiment - Renamed from the 9th Infantry Regiment consisted of
- ** 25th Infantry Battalion
- ** 26th Infantry Battalion
- ** 27th Infantry Battalion
- 4th Army Circle consisted of
- * 4th Infantry Regiment which consisted of
- ** 28th Infantry Battalion
- ** 29th Infantry Battalion
- ** 30th Infantry Battalion
- ** 31st Infantry Battalion
- 5th Army Circle which consisted of
- * 5th Infantry Battalion
- * 38th Infantry Battalion
- * 39th Infantry Battalion
- * 42nd Infantry Battalion
Air Force
90th Combined Wing - unknown number
- 41st Squadron
- * Curtiss Hawk III
- 42nd Squadron
- * Curtiss Hawk III
- 32nd Squadron
- * Vought Corsair V-93s
- 11th Squadron
- * Mitsubishi Ki-30
- 12th Squadron
- * 17 Mitsubishi Ki-30
- 61st Squadron
- * Martin 139WS
- 62nd Squadron
- * Mitsubishi Ki-21-I