After British lawmakers voted 397-223 in favor of bombing the Islamic State in Syria, fighter jets immediately went to work.

According to the British defense ministry, four RAF Tornados were deployed from Akrotiri air base in Cyprus soon after the vote, and targeted the Omar oilfield in eastern Syria.

The move comes after the Parliament had initially rejected military action in Syria in a 2013.

In a statement, the defense ministry said it targeted the oilfields because they are the "mainstay of Daesh's [the Islamic State's] financial income."

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