Corsica the wars for the conquest of the colonial empire, the introduction of steamboats, which reduced the travel time between mainland France from the island drastically, and — last but not least — Napoleon himself, whose existence alone constituted an indissoluble link between France and Corsica. Thanks to all these factors by around 1870 Corsica had landed in the French cultural world. From the 19th century into the mid-20th century, Corsicans also grew closer to the French nation through participation in the French Empire. Compared to much of Metropolitan France, Corsica was poor and many Corsicans emigrated. While Corsicans emigrated globally,
Defensive Organization of Corsica and to support artillery batteries capable of controlling the Strait of Bonifacio between Corsica and the Italian island of Sardinia, separated by only twelve kilometers. As World War II unfolded, no attempt was made by Italian forces to mount an opposed landing on Corsica. The island was instead occupied in November 1942. In 1943 Corsica saw fighting when German forces moved from Sardinia. Most of the fortified positions remain to the present day. During the inter-war period, Corsica's defenses were first examined in 1926, when General Debeney requested a study of the island's defenses from Vice-Admiral Salaun, the French Navy