He fought in France and he got imprisoned in Monza in 1943, bound to a German concentration camp, but he managed to escape and run away from Italy to Switzerland as a refugee.

At the end of the conflict he returned to Milan, where he became assistant professor of Aldo Carpi at Brera Academy.

[1][2] During his academic growth, Martini's style was influenced by Novecento Italiano, and then by Chiarismo Lombardo movement.

The English period (1938–1940) gave him the possibility to assimilate the Impressionistic lesson and the art of painters as William Turner and John Constable.

The artistic maturity brought new pictorial trials, where children and Italian landscapes carved out a leading role in his canvases, showing the artist's love and attachment for his daily inner life.