U.S., South Korea to consider expanded military exercises

What they're saying: During a press conference after a meeting with Yoon, Biden said the U.S. and South Korea's economic and military relationship shows “our readiness to take on all threats together," according to AP.

• Yoon, who was sworn into office last week, said the alliance “was forged in blood on the battlefield of the Korean War." He stressed the partnership would go beyond addressing security concerns and encompass more technological and industrial agreements.

The big picture: White House national security adviser Jake Sullivan warned Wednesday that North Korea may conduct a long-range missile or nuclear weapon test during Biden's visit to South Korea, which is a part of his multi-day trip around Asia.

• U.S. officials have warned that Kim Jong Un’s government has been making preparations at North Korea's underground Punggye-ri nuclear test site. The activity indicates North Korea may be on the verge of resuming underground nuclear weapons testing.

• Despite heightened tensions from its missile tests and nuclear test preparations, Biden again offered North Korea coronavirus vaccines to help the country control a massive outbreak.

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