» For the belief in the legendary island civilization, see: Atlantis. Atlanticism is a philosophy of cooperation among Western European and North American nations (specifically the United States and Canada) regarding political, economic, and defense issues, with the purpose to maintain the security of the participating countries, and to protect the values that unite them: "democracy, individual liberty and the rule of law." Atlanticism. The American Heritage Dictionary of the English Language:… (More on Atlanticism)