Why is there so much military interest in the moon?

Over the last few years, the Defense Advanced Research Projects Agency, better known as DARPA, has increasingly zeroed-in on the moon. 

A trio of proactive DARPA undertakings looking to advance technologies for use on the moon has been welcomed in some quarters. Back in 2021, DARPA kick-started its Novel Orbital moon Manufacturing, Materials, and Mass Efficient Design (NOM4D) program. Last month, DARPA threw in some “LOGIC” into the mix via the Lunar Operating Guidelines for Infrastructure Consortium, or LOGIC for short. DARPA has also initiated the 10-Year Lunar Architecture (LunA-10) Capability Study to spur the development of an integrated future lunar infrastructure for “peaceful U.S. and international use.”