๏ถ aerial (adjective) โ happening in the air. ๏ถ declassify (verb) โ to declare officially that government document/report/information is no longer secret. ๏ถ establish (verb) โ prove, demonstrate, determine, validate, verify. ๏ถ the fact that (phrase) โ used to refer to a specific situation under consideration/discussion. ๏ถ grave (adjective) โ crucial/critical, important/significant, serious. ๏ถ conflict (noun) โ war, armed conflict, battle, fighting. ๏ถ underlying (adjective) โ fundamental, basic, primary. ๏ถ trigger (verb) โ cause, give rise to, lead to, bring about, generate, provoke, stir up. ๏ถ offensive (noun) โ (of a weapon) suited for use in attack. ๏ถ invasion (noun) โ attack, offensive, onslaught, incursion, assault. ๏ถ impose (verb) โ apply, implement, enforce, force. ๏ถ sanctions (noun) โ action taken, or an order given to force a country to obey international laws by limiting or stopping trade with that country, by not allowing economic aid for that coun...