If border disputes were a fail for military/economic alliances, then Canada wouldn't be in NATO/NORAAD and neither would Denmark be in NATO. Canada has several active border disputes with the US, the most important being US not recognizing our internal waters as such around Baffin Island. Canada and Denmark to this day have an unresolved dispute over some tiny island by greenland that literally is too small to even build a swimming pool in.
UN Secretary-General Antonio Guterres arrived in Russia on Wednesday to attend this week’s BRICS summit, his first visit to the country in more than two years.