The Brezhnev Doctrine asserted that the Soviet Union would start becoming an important and interfering force in the Eastern part of Europe for one reason only - to preserve communist rule. A part this doctrine was also that they would want to obtain a disarmament agreement between themselves and NATO.
If someone wakes up later in the day, they have to work harder all day to get accomplished what could have been easier if they had woke up earlier.
The world<span> was </span>plunged into WWII<span> in 1939, because the appeasement did not work and Hitler kept expanding, and it got to the point where no one could stop him. This is why we need the collective security, to bring nations to stop Hitler. Overall it was because of Hitlers expansions that we had to go </span>into WWII<span>.</span>