"The United States and the European Union (EU) have pursued similar policies in response to the crisis in Ukraine. Both have provided additional financial aid to bolster Ukraine's political transition, condemned Russia's annexation of Crimea, and called for Russia to end its support of separatists in eastern and southern Ukraine. The United States and the EU have taken steps to isolate Russia diplomatically and imposed several rounds of sanctions in an effort to change Moscow's behavior and bring an end to the conflict in eastern Ukraine. (For background, see CRS Report RL33460, 'Ukraine: Current Issues and U.S. Policy,' by Steven Woehrel.) At the same time, some U.S.-EU tensions have been evident as the two sides have grappled with how best to respond to Russia's actions in Ukraine. Frictions have been perhaps most pronounced on the issue of sanctions. Between March and early July 2014, the EU and the United States announced visa bans and asset freezes on several dozen Russians and Ukrainians. In contrast to the United States, however, the EU did not sanction members of Russian President Vladimir Putin's 'inner circle' or key firms or banks associated with them due to concerns about antagonizing Russia."
CRS Insight, IN10129