Cameron made the remarks on Wednesday during his Conservative party conference in Britain’s second largest city of Birmingham.

    "You have declared your allegiance, you are an enemy of the UK and you should expect to be treated as such," said Cameron.

The prime minister said he would take any possible measure to prevent suspected British militants from traveling to the two Middle Eastern countries as well as from returning to the UK.

Cameron listed a number of possible measures such as confiscating passports, prosecuting, convicting and imprisoning that will be taken against any Briton who is considering traveling to Iraq and Syria.

At least 500 Britons are believed to have joined the Takfiri terrorists in Syria and Iraq over the past two years. In addition, the British government says 250 others have already returned to the UK.

On September 27, Britain joined the US-led airstrikes against ISIL in Iraq, which began a month earlier. The US and its Arab allies as well as France have been also conducting air raids against ISIL inside Syria since last week without any authorization from Damascus or a UN mandate.

Many observers have noted that the countries that are now part of the US-led coalition, had previously extended massive backing to various militant groups, including the Takfiri terrorists fighting to overthrow the government of Syrian President Bashar al-Assad.

The ISIL Takfiri terrorists currently control parts of Syria and Iraq. They have threatened all communities, including Shias, Sunnis, Kurds, Christians and Izadi Kurds, as they continue their atrocities in Iraq.

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