Should America’s Allies in Asia Have Nuclear Weapons?

domino effect – n. a situation in which one event causes a series of (sometimes similar) events to happen one after another

umbrella – n. (used figuratively) protection

conduct – n. to plan and do (something, such as an activity)

commitment – n. the attitude of someone who works very hard to do or support something; a promise to do or give something

undermine – v. to make (someone or something) weaker or less effective, often in a secret or gradual way