By ZEKE MILLER, DARLENE SUPERVILLE and GEIR MOULSON ELMAU, Germany (AP) — Ukrainian President Volodymyr Zelenskyy on Monday underscored the urgency of helping his country’s military improve its position against Russia in a video meeting with leading economic powers, who in turn pledged to support Ukraine “for as long as it takes.” Zelenskyy addressed the delicacy of the moment for Ukraine in its war with Russia to the Group of Seven summit as the leaders of the major economies prepared to unveil plans to pursue a price cap on Russian oil, raise tariffs on Russian goods and impose other new sanctions. In addition, the U.S.