assure – v. to make something sure or certain
assumption – n. something that is believed to be true or probably true, but not known to be true
isolationism – n. the belief that a country should not be involved in agreements with other countries
exit – n. something that is used as a way out of a place
insurance – n. an agreement in which someone makes payments to a company and the business promises to pay money if the person dies or is injured
destination – n. a place to which someone is going
gateway – n. an opening in a wall or fence
NATO – n. short for the North Atlantic Treaty Organization