Answer:
It was the quest for westward expansion. The Manifest Destiny called for the US to fulfill the divine mission to expand and dominate the whole continent. After the independence, the US moved westward step by step: the Louisiana Purchase, Texas, the Mexican-American War. This last event allowed the US to increase its territory, incorporate California and reach the shores of the Pacific Ocean.
Explanation:
What do we answer?? I will edit my answer if we have to answer something.
The battles that happened before the passing of the D.I. were
Battles of Lexington and Concord
Siege of Boston
Capture of Fort Ticonderoga
Battle of Chelsea Creek
Battle of Machias
Battle of Bunker Hill
Battle of Gloucester
Siege of Fort St. Jean
Burning of Falmouth
Battle of Kemp's Landing
Siege of Savage's Old Fields
Battle of Great Bridge
Battle of Quebec
Burning of Norfolk
Battle of Moore's Creek Bridge
Battle of the Rice Boats
Battle of Nassau
Battle of Saint-Pierre
Battle of Block Island
Battle of The Cedars
Battle of Trois-Rivières
Battle of Sullivan's Island
Battle of Turtle Gut Inlet
