Revealed: The three British women ISIS supporters who are spreading extremist ideology in UK and encouraging young girls to join the jihadists in Syria

In undercover footage filmed as part of a 12-month investigation three female ISIS supporters are heard telling young Muslim women that Britain is waging war against them and that they should join ISIS in Syria. Extremist ISIS ideology

was spread both online and in person to women and impressionable young girls, often in front of very young children. The trio identify themselves as Umm Saalihah, Umm L and Umm Usmaan on Twitter. In one study session in East London, Umm L is heard saying that what the government calls extremism is simply being a good Muslim. In a trailer for the documentary, ISIS: The British Women Supporters Unveiled, which aired on Channel 4 tonight, one ISIS supporter says: 'We do not submit to the law of any country, any nation', while Syria is promoted on Twitter as 'the best of Allah's lands on earth'.