What caused a hot war to break out in Korea

Stalin wanted to see Communism expand as long as he did not get involved in a 'hot war' with America. The trigger for the war was when, in 1950, Syngman Rhee boasted that he was going to attack North Korea. It was a good enough excuse – the North Koreans invaded South Korea. This started the actual fighting.

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions