KYIV, Ukraine (AP) — Only Russia is responsible for the war in Ukraine, Ukrainian President Volodymyr Zelenskyy said Sunday as he vowed to press ahead with strikes on Russian oil refineries, despite criticism from U.S. President Donald Trump, who blamed him for high diesel prices and said he should be replaced. The exchange came as Kyiv pressed its campaign against infrastructure deep inside Russia, with a drone attack on Sunday shutting down a data center run by Russian technology giant Yandex, the third strike on the company’s facilities in four days. Russia and Ukraine are locked in a long-range aerial...