abandon –v. to leave and never return to someone who needs protection or help

continent –n.one of the great divisions of land, such as North America, South America, Europe, Asia, Africa, Australia, or Antarctica, of the Earth

drone –n. a type of small aircraft that flies without a pilot

global –adj. involving the entire world

mercenaries –n. soldiers who will fight for any group or country that hires them

cooperation – n. a situation in which people work together to do something

surge –n. a sudden, large increase