The message from General Peter Pace, the chairman of the US joint chiefs of staff, was apocalyptic.
"We are at a critical time in the history of this great country and find ourselves challenged in ways we did not expect. We face a ruthless enemy intent on destroying our way of life and an uncertain future," he said.
Pace was endorsing the Pentagon's four-yearly strategy review, presented to Congress last week. The report sets out a plan for prosecuting what the the Pentagon describes in the preface as "The Long War," which replaces the "War on Terror."
The long war represents more than just a linguistic shift: it reflects the ongoing development of US strategic thinking since the Sept. 11 attacks.
Looking beyond the Iraq and Afghan battlefields, US commanders envisage a war unlimited in time and space against global Islamist extremism.
"The struggle ... may well be fought in dozens of other countries simultaneously and for many years to come," the report says. The emphasis switches from large-scale, conventional military operations, such as the 2003 invasion of Iraq, towards a rapid deployment of highly mobile, often covert, counter-terrorist forces.
Among specific measures proposed are: an increase in special operations forces by 15 percent, an extra 3,700 personnel in psychological operations and civil affairs units, an increase of 33 percent -- nearly double -- the number of unmanned aerial drones, the conversion of submarine-launched Trident nuclear missiles for use in conventional strikes, new close-to-shore and high-speed naval capabilities, special teams trained to detect and render safe nuclear weapons quickly anywhere in the world and a new long-range bomber force.
The Pentagon does not pinpoint the countries it sees as future areas of operations but they will stretch beyond the Middle East to the Horn of Africa, north Africa, central and southeast Asia and the northern Caucasus.
The Cold War dominated the world from 1946 to 1991. The long war could determine the shape of the world for decades to come. The plan rests heavily on a much higher level of cooperation and integration with Britain and other NATO allies, and the increased recruitment of regional governments through the use of economic, political, military and security means. It calls on allies to build their capacity "to share the risks and responsibilities of today's complex challenges."
The Pentagon must become adept at working with interior ministries as well as defense ministries, the report says. It describes this as "a substantial shift in emphasis that demands broader and more flexible legal authorities and cooperative mechanisms ... Bringing all the elements of US power to bear to win the long war requires overhauling traditional foreign assistance and export control activities and laws."
The report, whose consequences are still being assessed in European capitals, states: "This war requires the US military to adopt unconventional and indirect approaches."
"We have been adjusting the US global force posture, making long overdue adjustments to US basing by moving away from a static defence in obsolete cold war garrisons, and placing emphasis on the ability to surge quickly to troublespots across the globe," it says.
The strategy mirrors in some respects a recent readjustment in British strategic thinking but it is on a vastly greater scale, funded by an overall 2007 US defense spending request of more than US$513 billion.