The Department of Defense, through the Naval Sea Systems Command, is issuing a Special Notice for the Strategic & Spectrum Missions Advanced Resilient Trusted Systems (S2MARTS) project, specifically in support of the Nuclear-Armed Sea-Launched Cruise Missile (SLCM-N) Flight System. The primary objective of this initiative is to develop a credible cruise missile design capable of delivering a nuclear payload in contested environments, emphasizing Model Based System Engineering, producibility, and risk reduction through modular demonstrations and enhanced testing. This project is critical for advancing national defense capabilities, and interested vendors must be members of the S2MARTS consortium to respond to the Request for Solutions (RFS), which is due by July 3, 2025. For further details, interested parties can contact Elizabeth Gillenwater at elizabeth.a.gillenwater.civ@us.navy.mil or Dallas Parsley at dallas.t.parsley.civ@us.navy.mil.