Constantine II of Greece
At first, the new king was seen as a good sign. There was a lot of political instability during his reign, however. This instability led to the Colonels' Coup of 21 April 1967, when the Greek junta came to power. Constantine was still the head of state. There were no military forces which were loyal to him. For this reason, he was not able to do much. He agreed to inaugurate the junta, if most of the ministers were civilians. There was a coup against the junta, but it failed.