The Navy Department of the United States has reported to me that on the morning of September fourth the United States Destroyer Greer, proceeding in full daylight toward Iceland... She was carrying American mail to Iceland. She was flying the American flag. Her identity as an American ship was unmistakable. She was then and there attacked by a submarine. Germany admits that it was a German submarine. The submarine deliberately fired a torpedo at the Greer, followed later by another torpedo attack. In spite of what Hitler's propaganda bureau has invented, I tell you the blunt fact that the German submarine fired first upon this American destroyer without warning, and with deliberate plans to sink her. The United States destroyer, when attacked, was proceeding on a legitimate mission...This was piracy -- piracy legally and morally. It was not the first nor the last act of piracy which the Nazi Government has committed... For attack has followed attack. Under Nazi control of the seas, no merchant ship of the United States or of any other American Republic would be free to carry on any peaceful commerce... The Atlantic Ocean which has been, and which should always be, a free and friendly highway for us would then become a deadly menace to the commerce of the United States, to the coasts of the United States, and even to the inland cities of the United States. Further damage to our economy would pro-long this economic depression we are in...

Unrestricted submarine warfare in 1941 constitutes a defiance -- an act of aggression...The Nazi danger to our Western world has long ceased to be a mere possibility. The danger is here now ...Normal practices of diplomacy...are of no possible use...

We have sought no shooting war with Hitler. We do not seek it now. But neither do we want peace so much, that we are willing to pay for it by permitting him to attack our naval and merchant ships while they are on legitimate business… So while we do not seek it, it has landed at our feet, and we must accept that we are one day soon to be at war...But when you see a rattlesnake poised to strike, you do not wait until he has struck before you crush him.
Was President Roosevelt advocating for neutrality or involvement? Provide one reason that President Roosevelt gives to support his position.