Why Threaten North Korea And China? Would Obama Start A War To Stay In Office?

Is Barack Obama trying to start a war, and will that war be used as an excuse to stay in office once his term is over?  Late in his second term, Obama is starting to become extremely aggressive with the rest of the world.  He just angered China by sailing an aircraft carrier task force past disputed islands in the South China Sea, he is provoking North Korea by simulating an invasion of that nation during a military exercise that is going to involve more than 300,000 troops, and he is backing Saudi Arabia and Turkey