So remember how we said the Cold War ended in 1991, with the fall of the Berlin Wall?

Yeah—technically, it did. But a lot of the distrust never really went away. In fact, some people have started to refer to current relations between the two countries as "The New Cold War."

When the government collapsed in the Ukraine in March 2014, Russia jumped on in ready to take control, which set off a bunch of warning bells for the rest of world. It seemed as if they were trying to create another sphere of influence similar to what was causing all those problems just after World War II.

(Head back over to the Timeline section of this guide for a refresher on Churchill's Iron Curtain speech.)

Ever since then, then U.S. and Russia have been at a standoff of Walking Dead proportions, only without the gunslinging, thankfully. The western world is pretty worried about what these latest troubles could mean for not only Russia and the United States, but also for everyone else.

When Reagan stood in front of the National Association of Evangelists in 1983, he made it very clear that the key to freedom and liberty winning out over the evil and oppressive policies of the Soviet Union came in the form of prayer, spirituality, and morality—the kind that could be found in the basic principles in American democracy.

He also said that making use of the nation's stockpile of nuclear weapons, particularly using them as a bargaining tool in the case of a nuclear freeze, was counterproductive, because it contradicted all the country stood for, all the values Americans had fought for since the 1770s.

Though Reagan died in 2004, his speech is still incredibly relevant to current issues between two of the largest countries in the world, and if what's happening now is really a "New Cold War," perhaps focusing less on the power of nuclear weapons and more on the power of American principles will be the best way to put an end to conflict for good.