Ключевые слова: aircraft, airplane, airspace, background, ban, barrier, blue, border, business, cancelled, citizen, closed, concept, control, crisis, document, flag, fly, forbidden, immigration, information, journey, law, migration, national, opens shelf, passport, person, politics, prohibited, protection, restricted, restriction, russia, russian, safety, sanctions, security, sign, stay home, stop, top view, tourism, transport, transportation, travel, wire,