Ключевые слова: allies, ally, america, american, attack, barrier, broken, business, canada, canadian, commerce, competition, concept, conflict, crisis, deal, economic, economy, export, exports, finance, flag, flags, freight, friends, goods, government, imports, law, neighbours, partner, partners, penalties, plan, politics, problem, relation, symbol, tariff, tax, trade, treaty, two countries, usa, war,