employment
(1) Except as provided in paragraph (4), the term “employment” shall, notwithstanding the provisions of subsection (a) of this section, include— (A) service performed after December 1956 by an individual as a member of a uniformed service on active duty, but such term shall not include any such service which is performed while on leave without pay, and (B) service performed after December 1987 by an individual as a member of a uniformed service on inactive duty training.