India and Pakistan, South Asia’s rival nuclear powers, are on the brink of all-out war. Such a conflict would be catastrophic, not only for the region’s 2 billion people, but for the entire world.

Conflict between India and Pakistan is not rare, with the two countries having periodically engaged in wars, clashes and skirmishes since gaining independence from British India in 1947.

But hours after the deal was confirmed, there have been accusations that the agreement is not being entirely upheld.