Russia remains an acute and formidable threat both to the United States and to U.S. interests in Europe. From the Arctic to the Baltics, Ukraine, and the South Caucasus, and increasingly in the Mediterranean, Russia continues to foment instability in Europe. Despite economic problems, Russia continues to prioritize the rebuilding of its military and funding for its military operations abroad. Russia’s military and political antagonism toward the United States continues unabated, and its efforts to undermine U.S. institutions and the NATO alliance are serious and troubling. Russia uses its energy position in Europe along with espionage, cyberattacks, and information warfare to exploit vulnerabilities and seeks to drive wedges into the transatlantic alliance and undermine people’s faith in government and societal institutions.