WASHINGTON, DC - MAY 02:  U.S. President Barack Obama (R) and German Chancellor Angela Merkel hold a joint news conference in the Rose Garden at the White House May 2, 2014 in Washington, DC. Obama and Merkel emphasized their continued support for the new government in Ukraine and their criticism of Russia after the failure of last month's Geneva Agreement. The Ukrainian military said today that pro-Russian militants in the eastern part of the country had used sophisticated weapons to shoot down two of its helicopters.  (Photo by Alex Wong/Getty Images)