APAC stands for Asia-Pacific, which is the region of the world adjoining the western Pacific Ocean. The precise boundaries of the Asia-Pacific region vary depending on context, but it generally includes countries in East Asia, Southeast Asia, and Oceania. The Asia-Pacific region is also referred to as the "Indo-Asia-Pacific" region. The region includes countries such as China, Japan, Australia, and New Zealand, among others. The Asia-Pacific region is an important area for global trade and security, and many military and civilian leaders from the region gather to enhance Asia-Pacific security cooperation through programs of executive education, professional exchange, and policy-relevant research.