Final answer:
The appeal used in the quoted statement is Pathos.
Step-by-step explanation:
The appeal used in the quoted statement is Pathos.
Pathos is an appeal to emotion, and in this case, the statement appeals to the emotions of patriotism, determination, and confidence in the armed forces and the American people.
The use of phrases like 'defend ourselves' and 'grave danger' evokes strong emotions and seeks to mobilize support for a united effort in response to the attack.
Learn more about Appeals in persuasive language