"Will it be more reassurance?Will it be a declaration of War.If so,with whom?"
FYI, Bush CANNOT declare war. He doesn't have the power to. He can move troops around and order them around under his power as Commander-in-Chief, but only Congress has the power to declare war as established in the Constitution.
My guess is that it will be more reassurance. Bush really has a delicate issue on his hands. One wrong foreign-relations move, and the United States could find itself alienated from many of its allies.