Next week, alongside the United Nations General Assembly opening session, Indian Prime Minister Narendra Modi will have his first in-person meeting with President Joe Biden. He is also scheduled to meet with Vice President Kamala Harris.

These meetings will arguably be the most important ones that Biden and Harris will have during next week’s marathon of meetings with world leaders gathered in New York. Their greatest challenge will be to demonstrate that the U.S. is a credible ally to India. This is no menial task. Aside from the Afghan people themselves, India is arguably the greatest casualty of Biden’s catastrophic surrender of Afghanistan to the Taliban.

Although India did not deploy soldiers to fight in the U.S.-led coalition in Afghanistan, it equipped and trained the Afghan army and police. India also supplied the U.S.-backed Afghan government with some $3 billion in civilian aid, making it Afghanistan’s largest provider of civilian aid. India was the first country to recall its diplomatic personnel from Afghanistan after the Taliban surrounded Kabul.

India had good reason to work toward the success of the U.S.-backed Afghan government. The Taliban, which the Afghan army fought alongside U.S. and coalition forces, are an extension of Pakistan’s all-powerful ISI intelligence arm.

Indian officials assess that much of the U.S. arsenal that was abandoned to the Taliban will end up equipping Pakistani-backed terrorists in their war against India.

But terrorism isn’t the only threat against India that is expected to increase massively in the wake of the Taliban’s resurgence. There is also the issue of nuclear war.

India and Pakistan both have nuclear arsenals. But unlike India, Pakistan views its nuclear weapons as weapons of first, rather than last, resort. In 2002, then-Pakistani Prime Minister Pervez Musharraf made this preference clear when he won a game of nuclear chicken with India.