In the Quadrennial Defence Review, a  longer-term strategy document mandated by the US Congress every four years, the Pentagon declares winning "today's wars" as the military's top priority, citing Afghanistan, Iraq and other unnamed countries where U.S. forces can help to "dismantle terrorist networks," according to a draft of the report.

It discards a long-running doctrine that required the military to prepare to fight two wars at the same time.
Instead, the military will have to prepare for a range of threats in an "uncertain security landscape" where extremists or "non-state actors" pose a growing danger along with the spread of weapons of mass destruction and cyber attacks, the document says, according to a report carried by AFP.

The review also for the first time identifies global warming as a potential trigger of instability and urges the military to renew efforts to reduce its dependence on oil.