The Monroe Doctrine was drafted because the U.S. government was worried that European powers would encroach on the U.S. sphere of influence by carving out colonial territories in the Americas. The U.S. government was particularly wary of Russia, because of its aims to extend its influence into the Oregon Territory, and of Spain and France, because of their potential designs to recolonize the Latin American territories that had recently gained independence. Although the British urged the U.S. to make a joint declaration with them, the U.S. ultimately opted for a unilateral one to avoid any hindrance to its own expansionist designs.