Bush just ended his speech to the nation with "May God Continue to Bless America."
Against darkened night skies, U.S. launches attacks against military targets in Kabul as well as terrorist training camps across the country. British forces are fighting with American troops. I get the impression from the speech that US and British troops will be sent on the ground.
Other allies including but not limited to Canada, Australia, and Germany have pledged to help in the fight. Both the NATO and ANZUS treaties were invoked in the days after the Sept 11 attacks.
For everyone who's been complaining about tighter security at airports and being inconvenienced when traveling, start getting used to it...