Answer:
President Reagan is encouraging Gorbachev to:
eliminate the physical barrier in Europe
In his speech at the Berlin Wall, President Reagan is urging Gorbachev to tear down the physical barrier that separates East and West Berlin, and to work towards a more unified and peaceful Europe. This is evident in his statement "Mr. Gorbachev, tear down this wall!" which has become a famous phrase associated with the end of the Cold War and the fall of the Berlin Wall.
Step-by-step explanation: