Andrii Vovk is back from the front lines for the first time in nine months — and after a shower and a quick trip to the mechanic to fix a window shattered in a drone blast, he will soon return. He is one of hundreds of thousands of Ukrainian troops still fighting in Russia's war, now entering its fifth year. There are no weekends in the military; no days off to rest or relax. Life becomes like the movie "Groundhog Day," Vovk said, with one day of combat blending into the next. Still, Vovk said he and many other Ukrainians who have been serving since the war's start are not ready to give up the fight — unless peace actually lasts.