The delivery of troops and equipment to China's first permanent military base on foreign soil calls for a closer look at the facility Beijing has been building there. Recent satellite imagery, obtained through our partners at AllSource Analysis, provides a clear view of the ongoing construction on the Horn of Africa and China's approach to foreign basing. One of the most visible elements of the naval base in Djibouti is its extensive security perimeter, which features three layers of defense. The inner layer consists of a large perimeter wall with several two-story towers at the corners for observation or for troop access to the wall. Outside these large walls, a smaller wall or thick fencing with several observation towers spread along the perimeter can be seen. The spacing between the walls and beyond the outer wall provide the third layer of security.