Ключевые слова: america, background, barrier, battle, business, canada, chess, chessboard, commerce, competition, concept, conflict, country, crisis, deal, deficit, discussions, dispute, dollar, duty, economy, exchange, export, finance, flag, global, goods, government, import, investment, loss, national, negotiations, pawn, politic, relations, risk, sign, states, strategy, symbol, tariffs, tax, united, us, usa, vs, war,