Annexation of Crimea by the Russian Federation military intervention in Ukraine "until normalization of a socio-political environment in the country". Putin's swift manoeuvre prompted protests of intelligentsia and demonstrations in Moscow against a Russian military campaign in Crimea. By 2 March, Russian troops moving from the country's naval base in Sevastopol and reinforced by troops, armour, and helicopters from mainland Russia exercised complete control over the Crimean Peninsula. Russian troops operated in Crimea without insignia. On 4 March Ukrainian General Staff claimed there are units of 18th Motor Rifle Brigade, 31st Air Assault Brigade and 22nd Spetsnaz Brigade deployed and operating in Crimea instead of Russian Black
Crimea other countries (including Ukraine) imposed economic sanctions against Russia, including some specifically targeting Crimea. Many of these sanctions were directed at individuals—both Russian and Crimean. In general they prohibit the sale, supply, transfer, or export of goods and technology in several sectors, including services directly related to tourism and infrastructure. They list seven ports where cruise ships cannot dock. Sanctions against individuals include travel bans and asset freezes. Visa and MasterCard temporarily stopped service in Crimea in December 2014. The Russian national payment card system now allows Visa and MasterCard cards issued by Russian banks to work in Crimea. The