Ronald Reagan uses all three main forms of appeal in his speech “Tear down this wall”, making his arguments sound more well-balanced and convincing.
Reagan argues for the importance of tearing down the Berlin Wall and for the return to democracy. To support his idea, he gives the example of several countries that are free and have had a “political and economic rebirth”: “Japan rose from ruin to become an economic giant. Italy, France, Belgium--virtually every nation in Western Europe saw political and economic rebirth; the European Community was founded”. Moreover, Reagan supports his idea when he talks about the prosperity of the West: “But in the West today, we see a free world that has achieved a level of prosperity and well-being unprecedented in all human history”
Reagan also appeals to logos when he talks about how West Berlin has developed since World War II:
Where four decades ago there was rubble, today in West Berlin there is the greatest industrial output of any city in Germany (…) Where a city's culture seemed to have been destroyed, today there are two great universities (…) Where there was want, today there's abundance--food, clothing, automobiles--the won...