The European Union's foreign policy chief is speaking out against bipartisan calls in the U.S. to provide lethal, defensive weapons to Ukraine in its fight against Russian-backed separatists.

Some lawmakers from both major parties have been pressing the Obama administration to provide lethal arms to Kiev, a move the president is said to be studying.

Federica Mogherini said Friday that "the European Union is doing enough" and insisted that the implementation of the peace deal brokered in Minsk last month "is the way to go forward."

German Chancellor Angela Merkel are been particularly outspoken against pouring more firepower into the conflict in eastern Ukraine.

Mogherini said that "what Ukraine needs now is not only the full respect of its sovereignty, of its territorial integrity but it is also peace."