George Washington was the first one
Yes you are correct a is correct
President Nixon reduced tensions between the US and the Soviet Union by traveling to China as well as the Soviet Union. When there, he signed an Arms Control Treaty with the Soviet Union in hopes of lessening the tensions.
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Even after the nation became independent, colonization still affected the nation's correspondence and position with and within the international world. Ultimately, colonialism left the independent nation unprepared to function in the modern global nation-state system and vulnerable to outside influence and pressure.