Entire conflict: 11 May 2038 - 26 July 2073 (35 years, 2 months, 2 weeks and 1 day)
Major Combat Operation: 26 March 2039 - 2 October 2070 (31 years, 6 months and 6 days) Spillover to the Anime World: 28 November 2053 - 14 June 2068 (14 years, 6 months, 2 weeks and 3 days)