CIMSEC – To deny sea control to the Russians, Ukraine needs sea mines, coastal defense cruise missiles, and scouting assets, such as fast patrol boats and drones. These systems have a symbiotic relationship in layered defense. Mines slow down the adversary; during clearance operations, CDCMs have an opportunity to engage the slowed vessels; and scouting assets support maritime domain awareness for over the horizon targeting. NATO should rush these weapons to support Ukraine’s defense.