The Department of Defense, through the Space Development Agency (SDA), intends to award a sole source indefinite delivery/indefinite quantity (IDIQ) contract to Johns Hopkins University Applied Physics Laboratory (JHU APL) for systems and mission engineering, research and development, and test and evaluation capabilities in support of the SDA's Proliferated Warfighter Space Architecture (PWSA). This contract, which will have a one-year ordering period with four additional one-year options, is critical for enhancing the United States' military space capabilities and ensuring effective implementation of advanced space systems. The total not-to-exceed ceiling amount for this contract is set at $75 million, and interested parties can direct inquiries to Christopher Glista at christopher.l.glista.civ@mail.mil, referencing the Notice of Intent to Sole Source - SDA-SN-25-0009.