; (2) assisting Taiwan in building an effective air defense capability consisting of a balance of fighters and mobile air defense systems; and (3) inviting Taiwan to participate in multilateral training activities hosted by the United States that increase the credible deterrent capabilities of Taiwan. (b) Report on naval port of call exchanges between the United States and Taiwan (1) Report required Not later than September 1, 2018, the Secretary of Defense shall submit to the appropriate committees of Congress a report on the following: (A) An assessment and planning regarding ports of call by the United States Navy at Kaohsiung, or any other suitable port or ports on the island of Taiwan. (B) An assessment of the feasibility and advisability of permitting the United States Pacific Command (PACOM) to receive ports of call by the navy of Taiwan in Hawaii, Guam, and other appropriate locations. (2) Form The report required by paragraph (1) shall be submitted in unclassified form, but may include a classified annex. (3) Appropriate committees of Congress defined In this subsection, the term appropriate committees of Congress means— (A) the Committee on Armed Services and the Committee on Foreign Relations of the Senate; and (B) the Committee on Armed Services and the Committee on Foreign Affairs of the House of Representatives. 1270A. Naval port of call exchanges between the United States and Taiwan The Secretary of Defense shall— (1) reestablish regular ports of call by the United States Navy at Kaohsiung or any other suitable port or ports on the island of Taiwan