The document that provides the structure for the US government is the Declaration of Independence.
the Articles of Confederation.
the US Constitution.
the Bill of Rights.

the indies

explanation:

because it's pure common sense, google it

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.