EN
The aim of the article is to present the policy of the United States of America toward Europe during the presidency of Barrack Obama in the context of a changing conception of American involvement worldwide. Economic cooperation and discrepancies among allies at a time of financial crisis are considered. The following instances of American involvement in international conflicts are analyzed: mission in Afghanistan, attempts to mediate in the Near Eastern peace process, the developments of the “Arab spring” and NATO’s intervention in Libya. The USA and the European countries cooperated also toward elimination of other threats to global security, such as: Iranian nuclear program or international terrorism. Despite a change of priorities in American foreign policy, the transatlantic alliance remains its major pillar.