US-South Korea nuclear submarine deal: What does it mean?

South Korea's government has announced that it has finalised an agreement to build nuclear-powered submarines in partnership with the United States.

The US has approved the "attack submarines" and agreed to cooperate in sourcing fuel, according to a fact sheet released by the White House on Thursday.

The agreement marks a significant step in South Korea's relations with the US and comes amid a period of growing tensions on the Korean Peninsula: with the nuclear-armed North Korea, and an expansionist China to the west.

Here's what you need to know about the agreement.

The agreement between the US and South Korea comes as leaders from both countries reached a broad trade deal earlier last month that would see reciprocal tariffs cut to 15% from 25%.