https://www.defenseone.com/policy/2025/03/pentagon-placing-probationary-employees-admin-leave-preparation-mass-firings/403566/
"There are 55,000 total probationary employees at DOD, according to Pentagon data shared with lawmakers this week and provided to Defense One. An undisclosed number of them began receiving notification of their new status on Monday. They are expected to be officially terminated 14 to 21 days later, according to the information provided..."
