A Ukrainian serviceman holds a rocket-propelled grenade (RPG) launcher at fighting positions outside the city of Kharkiv, Ukraine February 24, 2022. REUTERS/Maksim Levin NATO allies rejected Ukraine’s demand for no-fly zones on Friday, saying they were increasing support but that stepping in directly would lead to a broader, even more brutal European war so far limited to Russia’s assault on its neighbor. Ukraine, a former Soviet republic that wants to join the European Union and Western military alliance NATO, is not a currently a member of either. Support so far has come mainly in the form of far-reaching sanctions on...