UK chiefs question how to rebuild defence as funding fails to meet requirements amid rising threats from Russia and China, and pressure from NATO allies.
"Prevent needs a major overhaul and integration into a wider system to which all those susceptible of being drawn into violence can be referred," it said.
The review warns that the current policy of leaving such women, men and children in limbo is "unsustainable" and risks turning the detention camps in northeastern Syria into "Britain's Guantanamo".
Billed as a "next generation" fighting machine, the nearly £10m Ajax left 17 soldiers requiring treatment for hearing loss. A minister tells Sky News the army "have put those (issues) to bed".
Deputy national security adviser Matthew Collins said he submitted three witness statements that set out how the communist state posed a "range" of security threats.
Defence Secretary John Healey told a London audience on Monday that UK forces could play an "anchor role" by contributing their "specialist experience and skills" to securing a long-term peace.
The National Cyber Security Centre (NCSC) says China poses a "capable" cyber threat, "targeting a wide range of sectors and institutions across the globe, including the UK".
The poor performance rate is despite Britain's expectations from its 37 stealth aircraft being "significantly" lower than a global target for all F-35B planes, according to the National Audit Office.
Former senior politicians, including Sir Ben Wallace, Jack Straw and Amber Rudd, play a fictional British government pitched against an imagined Kremlin.