Ключевые слова: barrier, blockade, boundary, business, cargo, chains, challenge, closed, commerce, concept, container, control, demand, economy, enclosure, export, fence, financial, freight, global, goods, import, industry, international, limitation, locked, logistics, market, metal, negotiation, obstacle, padlock, policy, prohibition, protectionism, regulation, restrictions, secure, security, services, shipping, supply, tariff, trade, transaction, transport,