Mexico, Spanish Florida, Louisiana and Oregon Country.
<u>Explanation:</u>
The expansion of American country is an important event in history. After Independence, all the colonial states were joined together forming a country called the United States.
This expansion process was started in the 19th century effectively. In 1803, Louisiana state was purchased which was the French Territory. It was bought for 15(approx.) million dollars and that doubled the American territory's size. Spanish Florida was acquired by the year 1821.
Oregon Country which was situated near the pacific ocean also acquired which was shared with the British for some time. In 1845, the outcome of the Mexican American war directly gained the north part of Mexico and that was included along with California.
The Americans, dropped into the floods the Germans had created at the bottom of the Cherbourg peninsula, lost many parachutists drowned by the weight of their own equipment. The American airborne divisions were also scattered over a wide area through the inexperience of their pilots.
