The U.S. Army performs a number of critical missions across the vast Indo-Asia-Pacific region. These include underwriting deterrence, building coalition capability, strengthening institutional capacity among partner defense establishments, maintaining interoperability, promoting military professionalism, building operational access, and conducting humanitarian assistance missions. For many, it may come as a surprise to know that almost all of the many Army activities and events that support these missions outside of Northeast Asia are conducted with U.S. Army forces based in the 50 states, often Alaska and Washington State. The roughly 22,000 U.S. Army Soldiers based in South Korea and Japan are focused largely on deterring North Korea from large-scale aggression, and assuring South Korea and other countries of the steadfastness of Washington's alliance commitment.