"Mutual Assured Destruction" a.k.a MAD

As the Cold War progresses by the years and make both superpowers, U.S. and U.S.S.R., even powerful and advanced in technology and machinery. It really starts to worry both sides about the fact that their country could get nuked anytime and not be prepared for it. This cause extreme paranoia for both sides and also brought the ideology of MAD (Mutual Assured Destruction). MAD was the idea of mass producing in nuclear warheads from both sides, so that if one were nuked, the other could return massive attacks and both sides will lose drastically, therefore it's not worth the risk to nuke the other. Another thing adding up to the MAD concept is that submarines play a big role in nuclear warheads. The technology at the time was capable of nuking another country from a submarine, which balance powers on both sides if they both have it. A submarine could actually carry and activate 24 nuclear warheads. Another point in history that actually disturbed the MAD concept was when Russia started developing ABMs (Anti-Ballistic Missiles), which was thought to have jeopardized the U.S. protection against a nuke while Russia had one. The U.S. was not going to invest in ABMs since they were much more expensive than warheads themselves, so they came up with a comeback to Russia. The U.S. developed MIRVs (Multiple Interdependent Re-entry Vehicles) which where multiple warheads fitted into one missile. The Signifacance of this invention or discovery was that one ABM could only destroy one warhead while the MIRV shots another 4 more, if 5 was the total amount of warheads in that one missile. Both sides eventually agreed on limiting nukes, but it did not sot the arms race because they now can fit multiple warheads into one missile.