Conversation so far:
What was Richard Nixon's relationship with the Soviet Union?
Richard Nixon used the improving international environment to address the topic of nuclear peace
What was significant about the Soviet Union at the time Richard nixon visited the soviet Union?
Nixon engaged in intense negotiations with Brezhnev. Out of the summit came agreements for increased trade and two landmark arms control treaties

Question: What were the arms control treaties?
Self-contained rewrite: What were the arms control treaties negotiated between The soviet Union and president Richard Nixon?