Germany has given Ukraine the green light to strike targets inside Russia using long-range weapons supplied by Berlin, in a decision that signals a notable hardening of Western resolve as the war grinds on.

Russian and Ukrainian forces exchanged deadly cross-border drone and missile attacks during the overnight hours Sunday into Monday morning despite international diplomatic efforts to end hostilities.

WASHINGTON/KYIV >> President Donald Trump today said Vladimir Putin was “playing with fire” by refusing to engage in ceasefire talks with Kyiv as Russian forces made gains in Ukraine’s northeast.