Missiles manufactured by the Ukrainian defense firm Fire Point and video footage of a burning Russian refinery, at a defense industry conference in Kyiv on June 30, 2026. What matters in the new phase of Ukraine’s war with Russia, Ukraine President Volodymyr Zelenskyy has made clear, “is to have the means to block the Russian fusillades,” Times columnist Serge Schmemann writes, “and there lies the current crunch.” (Jedrzej Nowicki/The New York Times) By SERGE SCHMEMANN Back when the…