Answer:
President Ronald Reagan addresses the issue of the Berlin wall, the need to end the arms race and also the need for unity between nations for the peace of the world.
Explanation:
President Reagan gave the now famous speech "Tear Down This Wall" with the Brandenburg gate of Berlin as the backdrop. In his speech, he not only stressed n the need for unity of the Berliners but also alludes t other issues that he specifically finds it of impertinent issue.
The most significant point in his speech is the invitation to General Gorbachev to "tear down this wall" which acts as a separating wall for East and West Germany. He reiterates "Mr. Gorbachev, open this gate! Mr. Gorbachev, tear down this wall!"
Added to this, he also talks about the arms race, referencing to the Soviet's "deadly SS-20 nuclear missiles, capable of striking every capital in Europe". He then continues how, with the united efforts of the countries, they were able to "reach the possibility, not merely of limiting the growth of arms, but of eliminating, for the first time, an entire class of nuclear weapons from the face of the earth".