In our continuing series following the Trump Administration’s Fiscal Year 2021 (FY21) budget request, we now turn to the Department of Defense (DOD). The DOD’s Science and Technology (DOD S&T) program is made up of three accounts: 6.1 (basic research), 6.2 (applied research), and 6.3 (advanced technology development). These accounts are themselves made up of individual accounts for each of the three services (Army, Navy, and Air Force), as well as a Defense Wide account. The Defense Advanced Research Projects Agency (DARPA) is a section under the Defense Wide account. Unfortunately, with few exceptions, most of these accounts are cut under the Trump Administration’s plans for FY21.