Moscow’s dual campaign of intensified frontline attacks and bombardment of Ukrainian cities has further reduced the prospects for an end to the fighting.

KYIV — Russia and Ukraine will meet next Monday in Istanbul for a second round of peace talks if the Kremlin produces its promised memorandum of terms for an agreement. After the first round of direct talks on May 16 in Istanbul, Russia and Ukraine agreed to prepare memorandums detailing their conditions for peace.

While world leaders bicker over the prospects for peace, the deadliest conflict in Europe since World War Two is heating up fast.