Ukrainian soldier Pavlo Martsenyuk, 34, has lost count of the friends and comrades killed since Russia launched its full-scale invasion almost four years ago, and he says he fights to keep their memories alive as he works through the long, painful recovery from an anti-tank mine explosion that left him blind in both eyes at a rehabilitation center in Lviv. President Trump's son-in-law Jared Kushner and special envoy Steve Witkoff are meeting Russia's Vladimir Putin in Moscow to discuss a U.S.-ba