India and China have reached an agreement on military disengagement along their disputed border, New Delhi said, a step toward reducing frictions between the nuclear-armed neighbors that comes as both countries’ leaders arrive in Russia for a summit.

Four years ago, several soldiers from both sides were killed in a bloody melee. Any thaw between the countries could have global implications.

China confirmed on Tuesday it had reached a deal with India over their disputed frontier, without elaborating on whether the pact covered the length of the border or just points where the two sides have been involved in a standoff since 2020.