Ключевые слова: background, border, business, citizen, citizenship, concept, control, coronavirus, countries, country, covid19, customs, document, documentation, emigration, entry, europe, european, flags, foreign, government, holiday, id, identification, identity, immigration, international, journey, labor, legal, lockdown, migrant, migration, modern, moldova, national, nationality, official, passport, republic, ticket, tourism, tourist, travel, trip, vacation, visa, work, world,