(A) was employed in the activation or operation of a vessel
(i) in the National Defense Reserve Fleet maintained under section 11 of the Merchant Ship Sales Act of 1946 (
50 App. U.S.C.
1744) in a period in which the vessel was in use or being activated for use under subsection (b) of that section;
(ii) requisitioned or purchased under chapter
563 of this title; or
(iii) owned, chartered, or controlled by the United States Government and used by the Government for a war, armed conflict, national emergency, or maritime mobilization need (including for training purposes or testing for readiness and suitability for mission performance); and