The Department of War is running two countdowns at once: the , the department’s plan for migrating to cryptography that can withstand attacks from quantum computers, requires systems to support PQC or be phased out by December 31, 2030, and to actually use PQC by December 31, 2031. Meanwhile, the department is mid-execution on a separate deadline: Target Level Zero Trust, due by the end of fiscal year 2027.