How is the constitutional principle
of checks and balances reflected
in the process log a bills becoming
law?

nafta and the union are used as a trade between other countries these   organizations are used as spokes person for the country

by improved communication.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.