In November 1951, military and police officers announced in a radiobroadcast that the 1949 constitution was suspended by the government and that the 1932 constitution was in force. The reason given for restoring a unicameral parliament with half its membership appointed by the government was the danger of communist aggression. Shortly after the government-engineered coup, King Bhumibol Adulyadej was called back to Thailand, and for the first time since 1935 an adult monarch resided in the palace in Bangkok. A revised constitution was promulgated in February 1952, and an election was held for seats in the new, single-house legislature, half of the members of which were to be appointed. Nearly all the appointed parliamentary members were army officers.