Other examples of heroic speeches?

Futurist

Ad Honoris
May 2014
21,755
SoCal
Two examples of heroic speeches that I could think of were Winston Churchill's "we shall fight on the beaches and never surrender" speech from 1940 as well as JFK's speech on Algeria (advocating in favor of Algerian independence) in 1957:

We Shall Fight on the Beaches - The International Churchill Society

Remarks of Senator John F. Kennedy in the Senate, Washington, D.C., July 2, 1957 | JFK Library

The first speech was heroic and courageous because it was given when Britain was fighting against Nazi Germany alone and when Nazi Germany controlled most of Europe. Meanwhile, the second speech was heroic because it was given at a time when France was determined to hold onto Algeria and when the Eisenhower Administration and the US State Department supported the French in their war in Algeria.

Anyway, what other examples of heroic speeches are there?