As North Korea ramps up missile tests, US and South Korean troops practice assaulting a beach

North Korea has been building up a ballistic missile arsenal on the stated premise that it needs to deter an attack on it by US and South Korean forces.

source https://www.cnn.com/2023/03/28/asia/us-marines-south-korea-amphibious-landing-intl-hnk-ml/index.html