Briefly explain the evolution of political parties from the emergence of the two party system in the late 1700s with the Federalists and
Democratic Republicans to the emergence of the Whigs and the
Democrats by the 1820's.

there are hundreds of postives ways to unite a country with another country here are a   few

1 peace treaty's peace treatys

are basically a document signing a allliance with one country and another.

2 gift

what i mean by this is for example how the french gave the americans the statue of libery a gift of peace.

you have too put the passage for people to understand