The definition would be "the military doctrine that an enemy will be deterred from using nuclear weapons as long as he can be destroyed as a consequence"
source: https://www.vocabulary.com/dictionary/nuclear%20deterrence
Answer:
It opened the internet to widespread popular usage
Along with a number of colonies in North America, the Caribbean formed the heart of England's first overseas empire. The region was also known as the 'West Indies' because when the explorer Christopher Columbus first arrived there in 1492, he believed that he had sailed to the 'Indies', as Asia was then known.