SEOUL, South Korea (AFP) – The United States and South Korea began their biggest combined military drills since 2018 on Monday, Seoul said — a move likely to enrage North Korea, which has been ramping up its nuclear threats. Washington is Seoul’s key security ally and stations about 28,500 troops in South Korea to protect it from its nuclear-armed neighbour. The two countries have long carried out joint exercises, which they insist are purely defensive […]