In its first report published today, the National Security Strategy (NSS) committee says key oversights include a lack of a long-term strategy over Afghanistan.
It questions why Afghanistan is not featured as part of our National Security Risk Assessment.
The committee's chair Margaret Beckett told Sky News: "The committee was concerned from the beginning that Afghanistan didn't feature in the National Security Strategy, and we were told that was because it was a current issue and the National Security Strategy was for the longer term.
"But the committee felt quite strongly that even though a date is set for the withdrawal of British troops, that doesn't mean it will cease to be a matter of national security."
The committee, which includes the former head of MI5, Baroness Manningham-Buller, also suggests a strategy to deal with the eurozone crisis is needed as "a matter of urgency".
It says the collapse of the single currency is "a plausible scenario" which could lead to "domestic and social unrest" as well as a surge of economic migrants. Read More