George Washinton (1732-1799) was the first American president, governing for two consecutive terms between 1789 and 1796 and refusing a third term.
The dangers Washington warned Americans about were 1) excessive political party spirit and 2) geographical distinctions.
He praises the spirit of one nation that should be cultivated in order for the U.S. to remain a free nation. For him, the Union was a victory American people should fight to keep.
Accordingly to the defense of the Union, Washington warned Americans against exaggerated regional identities. For him, the national victory over British authoritarianism should always be remembered as a collective victory.