The escalating conflict between India and Pakistan, two neighbors who have been rivals for decades, erupted in the early hours of Wednesday morning when New Delhi launched missiles across the border.

New Delhi controls around 172 nuclear weapons, according to the Arms Control Association. Pakistan has approximately 170 nuclear warheads. India and Pakistan, two nuclear-armed nations, saw a decades-old conflict reignite May 7 as a terror attack in the disputed region of Kashmir led India to carry out cross-border airstrikes.