The Biden administration announced that Ukraine would receive $3 billion in military assistance — the largest amount it has sent since Russia began its invasion in February. The Department of Defense said that it was meeting both Ukraine’s “immediate and longer-term security assistance needs.” Among the 245,000 rounds of artillery ammunition and the laser-guided rocket systems listed in the Pentagon’s security assistance for Ukraine under the Ukraine Security Assistance Initiative (USAI) were the VAMPIRE Counter-Unmanned Aerial Systems. VAMPIRE is an acronym for “Vehicle-Agnostic Modular Palletized ISR Rocket Equipment.” In short, the system transforms pickup trucks and other vehicles into mobile...