President Donald Trump has finally found a way to like arming Ukraine: ask European allies to donate their weapons, and sell them American replacements. Several European countries have already committed to support this initiative including Germany, Norway, Denmark, the Netherlands, Sweden, the United Kingdom, Canada and Finland. The central question is who would donate the Patriot batteries, and when. German Defense Minister Boris Pistorius, who visited the Pentagon on Monday, said the Germans would discuss sending Patriot batteries to Ukraine with the U.S. in the coming days or weeks. But no Patriot system would arrive in Kyiv for months, he said, likely delaying any receipt until after the tactically crucial summer months.