Plzzz help me! I’ll mark brainliest!! “Day of Infamy” Speech (WW2)

Just hours after hearing about the bombing of Pearl Harbor, President Roosevelt dictated the words he would say to Congress the very next day. After all, he was asking the nation to prepare for war. He confidently spoke the following words:

“Yesterday, December 7, 1941—a date which will live in infamy—the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan. . . .
No matter how long it may take us to overcome this premeditated invasion, the American people in their righteous might will win through to absolute victory. I believe that I interpret the will of the Congress and of the people when I assert that we will not only defend ourselves to the uttermost but will make it very certain that this form of treachery shall never again endanger us.
Hostilities exist. There is no blinking at the fact that our people, our territory, and our interests are in grave danger.
With confidence in our armed forces—with the unbounding determination of our people—we will gain the inevitable triumph, so help us God.
I ask that the Congress declare that since the unprovoked and dastardly attack by Japan on Sunday, December 7, 1941, a state of war has existed between the United States and the Japanese Empire.”

—President Franklin Roosevelt, December 8, 1941
in a speech requesting Congress for a declaration of war against Japan.

How did Roosevelt use language to make his case for war?