Former Prime Minister Tony Blair said that while there were "perfectly legitimate" debate about the role of the US/UK invasion of Iraq to topple Saddam in 2003, it was important to look at the events in Iraq in relation to the war in Syria.
Speaking in a pre-recorded interview on BBC1's Andrew Marr show, he said the single biggest worry for security forces in the UK and across Europe was the threat of returning jihadist fighters from Syria.
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