Former Russian President Medvedev calls for preemptive strikes while Trump gives Putin a 50-day ultimatum to reach peace with Ukraine or face sanctions.

Ukraine has proposed a new round of peace talks with Russia, President Volodymyr Zelensky has said, in a move aimed at restarting negotiations that halted last month. Senior security official Rustem Umerov has offered to meet the Russian side next week, Zelensky said in his evening address, adding that everything had to be done to get a ceasefire.