Ukrainian President Volodymyr Zelensky published an open letter addressed to Russian leader Vladimir Putin calling for face-to-face negotiations and a comprehensive ceasefire.

“Ukraine proposes ending this war through direct engagement between us — and you. I am proposing a meeting,” he said in the letter, which was released on Thursday. “We must determine what kind of future awaits the generations of Ukrainians and Russians who will come after us. If you do not personally come to the conclusion that it is time to end this war, Ukraine will continue fighting for its existence.”