Ukrainian President Volodymyr Zelenskyy has lofty ambitions for a summit in Switzerland this weekend, but on the front line and in war-fatigued Kyiv, hopes for any major breakthrough are close to none.

The conference convening some 90 countries and global institutions is coming at a perilous moment for exhausted Ukrainians and outgunned soldiers, after more than two years of war.

Sergiy, a deputy commander of a tank brigade deployed to the eastern Donetsk region where fighting is fiercest, said that when powerbrokers sit down to really thrash out an end to fighting, it probably won't be at a plush summit.