I was following many disscusion threads over on bar.baen.com [science fiction publisher webboard/newsgroup site].
Many of the posters are current and ex-military ['inactive reserve' Navy for me].
A draft declaration of war was posted, and I saved the text:
Whereas the People of the United States have been deliberately attacked without
provocation.
Whereas the means used were tantamount to a Weapon of Mass Destruction.
It is RESOLVED in Congress that a State of War exists between the United States
of America and the parties which planned and executed this attack.
This State of War shall extend to ANY and ALL Nations, Non-Governmental
Agencies, and Individuals which are demonstrated to be parties to the attack,
be that participation before or after the fact. Said Nations, Non-Governmental
Agencies, and Individuals will be afforded 24 hours notice in order to
facilitate their surrender prior to the initiation of hostilities.
[end of quote]