Phayap Army

Phayap Army ( RTGS: Thap Phayap or Payap, "northwest") 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 (Northern Army) - Lieutenant General Charun Rattanakun Seriroengrit
Reorganization.
During the fighting, Phayap Army has added the following units by regrouping
Bad weather forced the early dissolution of the cavalry division and moving the 35th Cavalry Regiment to Roi Et and the 1st Cavalry Battalion (Royal Guard using Australian stallions) back to BKK.
Nevertheless, the RTA created the following units to replace the cavalry units in the Phayap Army:
2nd Army.
After peace in Kentung has been restored in 1943, the Royal Thai Army has withdrew some units of the Phayap Army and created the 2nd Army as a reserve force.
In 1943, RTA created The 2nd Army (Lopburi) which consisted of
37th Division.
In 1944, the Royal Thai Army created the following units to help train the Seri Thai (Free Thai Movement).
Demobilization.
After the peace declaration on 16 August 1945, the following units of Phayap Army along with war time units were dissolved and demobilized:
30 October 1945: The following units were dissolved and demobilized
13 November 1945: The following units were dissolved and demobilized
Postwar Reorganization.
The postwar reorganization of Royal Thai Army in 1946:
Air Force.
Chief-of-the-Air-Staff - Group Captain Fuen Ronnaphagrad Ritthakhanee
90th Combined Wing - unknown number