Let us use this occasion, the 750th anniversary of this city, to usher in a new era, to seek a still fuller, richer life for the Berlin of the future. Together, let us maintain and develop the ties between the Federal Republic and the Western sectors of Berlin, which is permitted by the 1971 agreement.

And I invite Mr. Gorbachev: Let us work to bring the Eastern and Western parts of the city closer together, so that all the inhabitants of all Berlin can enjoy the benefits that come with life in one of the great cities of the world.

–“Tear Down This Wall” speech,
Ronald Reagan

What does Reagan achieve by repeatedly using the word us?

This use of inclusive language shows how the United States and Germany oppose the Soviet Union.
This use of inclusive language conveys the idea that the Americans and the Soviets can work together.
This use of exclusive language explains that the United States and Germany are in opposition to each other.
This use of exclusive language introduces the idea that the United States will no longer support Germany.