The 2nd Space Operations Squadron is a United States Space Force unit responsible for operating the Global Positioning System (GPS) satellite constellation, which provides global navigation, time transfer, and nuclear detonation detection. It is a component of Space Operations Command's Positioning, Navigation, and Timing Integrated Mission Delta (Provisional) and headquartered at Schriever Space Force Base, Colorado.

The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephone or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver.