North Korea is a common denominator when it comes to Cold War-esque topics. During the first cold war, the U.S. went to war with them after the Korean crisis. In modern times, the North Korean regime is the main antagonist of current events. They are developing nuclear weapons and will have to be contained or they will start another war.
Currently, there is much distrust and animosity between the U.S. and Russia. There have been accusations of wiretapping and investigations have been launched. During the cold war, distrust between the U.S. and Russia was very major. That was the premise of the actual war itself. During the Cold war, there was also wiretapping from the U.S. that helped end the war. (this slide covers 2)
Russia is building up its military in arctic regions of the world and is training many soldiers to operate in sub-zero conditions. The U.S. is also training many soldiers to fight in arctic conditions. The U.S. just built a $13 billion dollar carrier and plans to stock it with many jets and equipment. During the cold war, the U.S. and Russia trained many soldiers for war and had many missiles and much military equipment being built.