Ukrainian President Volodymyr Zelenskyy definitely wasn’t the one world leader at this week’s U.N. General Assembly meeting to color a dire picture of international relations. BEIJING — China on Thursday defended a new border law following criticism by India that it would disrupt the resolution of a 17-month-old standoff over disputed territory within the remote Ladakh region that has led to violent clashes. Even if a Russian invasion of Ukraine doesn’t happen in the subsequent few days, the disaster is reaching a important inflection point. “There isn’t any single silver bullet, however taken collectively, our concerted action is tackling the…