An assessment of the concept-required military capabilities necessary to address the problems identified under subparagraph (F). (H) An assessment of challenges to escalation management. (I) An assessment of military or nonmilitary options to counter or retaliate against such a blockade or the seizure of outlying islands of Taiwan, including through horizontal escalation. (J) An assessment of the extent to which such a blockade is addressed by the Joint Warfighting Concept and Joint Concept for Competing. (K) An identification of necessary changes to United States Armed Forces force design, doctrine, and tactics, techniques, and procedures for responding to or mitigating the impact of such a blockade. (L) An assessment of the role of United States partners and allies in addressing the threats and challenges posed by a such a potential blockade. (M) Any other matter the Secretary of Defense considers relevant. (b) Interagency engagement Not later than 270 days after the date of the enactment of this Act, the Secretary of Defense shall seek to engage with the head of any other appropriate Federal department or agency— (1) regarding the threats and challenges posed by a potential sustained military blockade of Taiwan by the People's Republic of China