momentum – n. the strength or force that allows something to continue or to grow stronger or faster as time passes

Green Berets – n. U.S. Army personnel trained to organize, instruct, supply, and supervise indigenous forces engaged in guerrilla warfare and counterinsurgency operations, and to themselves conduct unconventional warfare

logistics – n. the things that must be done to plan and organize a complicated activity or event that involves many people

NATO – n. also known as the North Atlantic Treaty Organization, it is an organization of countries that have agreed to provide military support to each other. It includes many European countries as well as the U.S. and Canada.

cautious– adj. careful about avoiding danger or risk

approach– n. a way of dealing with something or a way of doing or thinking about something

indicator– n.  a sign that shows the condition or existence of something

ISIS– n. stands for Islamic State in Iraq and Syria and is an extremist militant group. Also known as ISIL and Islamic State