[Relations between Thailand and the British Empire deteriorated rapidly after the outbreak of war with Japan. Japanese forces were permitted to make use of Thai territory to attack Malaya and Burma, Thai troops entered Burma and Thai aircraft attacked Australian forces in Malaya. On 28 December the Thai diplomatic mission was ordered to leave London and on 25 January Thailand declared war on the United Kingdom and the United States.]
State of war with Thailand. Please submit to Palace authorities instrument to Governor-General  in similar terms to type already issued with respect to Japan , substituting Kingdom of Thailand for Japan.
His Majesty may take this telegram as representing the advice of His Ministers in the Commonwealth. Instrument will in due course be countersigned by myself. Please follow previous procedure.