Which nation delivered the second submarine out of eight ordered by Pakistan in March 2025, thereby boosting their defense partnership?

Explanation

In March 2025, a Chinese shipyard completed the second Hangor-class submarine out of eight ordered by Pakistan. This milestone marks a significant enhancement in the military cooperation between China and Pakistan. The submarines, featuring advanced stealth technology and weaponry, are part of a deal where half are built in China and the rest in Pakistan under a technology transfer agreement. These vessels are expected to strengthen Pakistan's naval capabilities and contribute to regional maritime security.