That the House of Representatives— (1) encourages the Department of Defense and the Department of the Navy to enter into an international joint-build, cost-sharing program for the next generation nuclear-powered fast attack submarine program (commonly known as SSN(X)) along the following guidelines: (A) In partnership with the nations of Australia, Canada, New Zealand, and the United Kingdom. (B) To initiate, develop, agree, and enter into such a program before the termination of fiscal year 2021 in order to begin to build at the soonest possible time; and (2) encourages the Department of the Navy to maximize the utility of autonomous underwater vehicles as a method to augment capabilities, reduce requirements, and reduce costs associated with SSN(X).