United States President
Joe Biden arrives in Asia this week, visiting South Korea and Japan, with the region facing its most volatile security environment in decades. Hot spots including Taiwan, North Korea, the South China Sea, the India-China border and the Kuril Islands have all seen a Ukraine effect, as Russia's war accelerates regional security concerns -- while providing lessons that major players in Asia are evaluating daily. Here's a look at those key spots and the military landscape Biden faces in each.