On and after January 1, 1974, all applications for the benefits contained in this article shall be filed with the department within 25 years from the date of the applicant’s discharge from the service, except applications filed by either:
(a) Veterans who were wounded or are disabled as a result of wartime service; or
(b) Veterans who were previously declared prisoners of war.
(Amended by Stats. 1973, Ch. 1015.)