The Frontline Innovation Act would authorize the Defense Innovation Unit within the Department of Defense to evaluate and invest in defense technologies developed by Ukraine. The legislation specifically aims to help the U.S. gain access to and benefit from Ukrainian military innovations, including technologies that have been tested and improved through actual battlefield use in Ukraine's ongoing conflict. The bill is designed to create a framework for closer technological cooperation between the two countries, allowing the Defense Department to pursue investments in these technologies without the usual procedural restrictions. No specific funding amount or timeline is specified in the legislation, leaving those details to be determined during implementation or through subsequent appropriations.