Hanmura Ryo. Sengoku jieitai
Divergence: 1549 CE
What if: Advanced technology was introduced into the Japanese warring states period.
Summary: A unit from the Japanese Self Defence Force is transported back in time.
Comments: Basis of two movies, Saito Mitsumasa's 1979 Sengoku jieitai (aka G.I. Samurai, aka Time Slip) and Tezuka Masaaki's 2005 Sengoku jieitai 1549 (aka Samurai Commando: Mission 1549).
Published: Hayakawa Shobo 1971; Kadokawa Shoten 1978, 1979.
Original in: Japanese.