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The Treaty of Tordesillas was the commitment subscribed in the town of Tordesillas, located in the current province of Valladolid, Spain, on June 7, 1494, between the representatives of Isabella and Ferdinand, kings of Castile and Aragon, by one part, and those of King Juan II of Portugal, on the other, by virtue of which a division of the navigation and conquest zones of the Atlantic Ocean and the New World was established by a line located 370 leagues west of the islands of Cape Verde, in order to avoid conflict of interests between the Hispanic Monarchy and the Kingdom of Portugal. In practice this treaty guaranteed the Portuguese kingdom that the Spaniards would not interfere in their route of the Cape of Good Hope, and vice versa the first would not do so in the recently discovered Antilles.
To overcome the threat of competitor countries in the world.
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The Battle of Kursk was the largest tank battle in history, involving some 6,000 tanks, 2,000,000 troops, and 4,000 aircraft. It marked the decisive end of the German offensive capability on the Eastern Front and cleared the way for the great Soviet offensives of 1944–45.
