David Cameron's 'ill-conceived' military intervention in Libya helped fuel the migrant crisis, MPs have warned

David Cameron's 'ill-conceived' military intervention in Libya fuelled the migrant crisis and spurred the growth of ISIS, MPs warn today.

In a devastating verdict, the Commons foreign affairs committee savages the former prime minister's judgment in rushing to war in 2011, saying the intervention was based on 'erroneous assumptions'.

The cross-party committee accuses Mr Cameron of ignoring military chiefs and a lack of reliable intelligence to pursue an 'opportunistic policy of regime change' in Libya.

And it says he gave little thought to how Libya would fare following the removal of dictator Colonel Gaddafi, setting the scene for the country's descent into chaos.

It claims the bungled military action in Libya paved the way for a major new terror training base for ISIS fanatics.

'Various tribes, independent militias and ISIL took advantage of the absence of central government to seize control of portions of Libyan territory,' the report states.

'ISIL has used its presence in Libya to train terrorists.'

The committee says Mr Cameron's Libyan adventure 'was not informed by accurate intelligence', with ministers underestimating the threat that the country could become an Islamist stronghold.

It concludes: 'By the summer of 2011, the limited intervention to protect civilians had drifted into an opportunist policy of regime change. That policy was not underpinned by a strategy to support and shape post-Gaddafi Libya.

'The result was political and economic collapse, inter-militia and inter-tribal warfare, humanitarian and migrant crises, widespread human rights violations, the spread of Gaddafi regime weapons across the region and the growth of Islamic State in North Africa.

Mr Cameron poses with Libyan rebels upon his arrival at Benghazi Airport in 2011

The Commons foreign affairs committee accused Mr Cameron of giving little thought to how Libya would fare following the removal of dictator Colonel Gaddafi (pictured)

'Through his decision making in the National Security Council, former prime minister David Cameron was ultimately responsible for the failure to develop a coherent Libya strategy.'

Today's report says Mr Cameron's failings in Libya means Britain now has a 'particular responsibility' to assist the war-ravaged country and help deal with the flood of migrants heading from its shores to Europe.

But it says ministers should not deploy troops to the country until it becomes more stable, warning they would become 'an accessible Western target' for IS and other militants.

The committee's Tory chairman Crispin Blunt last night: 'The UK's actions in Libya were part of an ill-conceived intervention, the results of which are still playing out today.'

Former French President Nicolas Sarkozy (left), Mustafa Abdel Jalil (centre) and Mr Cameron (right) join hands in Benghazi in September 2011

A rebel fighter is pictured looking at a burning vehicle belonging forces loyal to Gaddafi, after an air strike by coalition forces in 2011

The report claimed that the military intervention in Libya spurred the growth of ISIS, pictured is a still from one of the chilling execution videos

An international coalition led by Britain and France launched strikes against Gaddafi's forces in March 2011 after the regime threatened to attack the rebel-held city of Benghazi.

Mr Cameron claimed the intervention was necessary to prevent a massacre of civilians, but the new report says that, despite appalling human rights abuses over 40 years, Gaddafi had no record of large-scale attacks on Libyan civilians.

Today's report also criticises Mr Cameron for ordering military action despite the reservations of the then Chief of the Defence Staff Lord Richards.

MPs are scathing about the lack of post-war planning. The report cites unpublished research by the House of Commons Library showing Britain spent £320million bombing Libya, but just £25million on reconstruction.