During 1915-1918 world war Moneglia lost 37 of its citizens.In 1924, during some works to move the railway path some Roman graves were found. During second world war (1939-1945) Moneglia was bombed by the aviation many times (June 13-14, 24, and September 1, 1944) and had many victims among civil population.
Almost all the population had to refuge them in the train tunnels between Moneglia and Sestri Levante, today used as a car street by the sea, and also in the bigger tunnel Vallegrande of the Genoa-La Spezia railway. The civil population had also very grate losses, due to the fights between the partisans and the nazi-fascist parties.
