1. South Korean President Yoon Suk Yeol said Tuesday that the South Korea-U.S. alliance has now been elevated to a 'nuclear-based' alliance during his Memorial Day speech delivered at Seoul National Cemetery.

2. The International Maritime Organization said on Monday that it will respond to North Korea if the country does not offer the organization any advanced notices for future satellite launches. This came after North Korea slammed the organization for adopting its first resolution last Wednesday, criticizing the country over its recent attempt to launch a satellite.

3. Ukrainian forces on Monday attacked along the frontline in the Donetsk region to punch through Russian defensive lines as military analysts said this appears to be Ukraine’s long-anticipated counteroffensive.