A teenager from London, who was allegedly trying to join a Kurdish military women's unit fighting Isis in Syria, has been charged with a terrorist offence. Shilan Ozcelik, who is of Kurdish descent, was arrested earlier this year at Stansted airport. She is believed to be the first British citizen to be arrested for trying to join the campaign against the jihadis who control eastern Syria and western Iraq. Ozcelik, from Holloway, north London, faces one charge of engaging in conduct in preparation for giving effect to an intention to commit acts of terrorism under the 2006 Terrorism Act. Her supporters say she travelled to Brussels in an attempt to join the women's protection units, also known as YPJ, that are based in Rojava – the Kurdish enclave in northern Syria under attack by Isis. She was arrested by on 16 January at as she returned from Brussels. Neither the YPJ nor the YPG, the main men's Kurdish peshmerga militia in northern Syria, are banned organisations in the UK. The charges against Ozcelik are understood to relate to the Kurdistan Workers party (PKK), which is outlawed in Britain and has spent decades fighting the Turkish army in a separatist conflict. Ozcelik appeared at Westminster magistrates court on Wednesday and was charged with a terrorist offence. She was remanded in custody and is due to appear at the Old Bailey next month. Her supporters are planning a demonstration outside Holloway prison in north London, where she has been remanded. Earlier this month a former British Royal Marine, Konstandinos Erik Scurfield, died fighting for Kurdish YPG forces in northern Syria.