9. Reiterating that anyone who participates in, or assists with, the financing, planning, preparation or perpetration of terrorist acts must be held accountable and brought to justice on the basis of the principle “extradite or try”, in accordance with the obligations of international law and applicable national law, 10. Recognizing the need to mobilize inter-State efforts on the basis of UN Security Council resolution 1624 (2005) in combating the spread of terrorist ideology and propaganda, and to exchange successful national experience and best practices in the area, 11. Welcoming the agreement of a consolidated international framework for combating terrorist propaganda, 12. Underlining the importance of co-operation among the OSCE participating States on preventing and suppressing the recruitment of members by terrorist groups, including foreign terrorist fighters, 13. Welcoming the work carried out by the Financial Action Task Force (FATF) and stressing that all participating States must take appropriate measures to prevent and suppress the financing of terrorism and refrain from providing terrorism with financial support in any form, including through the participation in direct or indirect trade in natural resources beneficial to terrorist organizations, 14. Reiterating its profound conviction of the need to improve the legal basis of the OSCE participating States in order to counter the terrorist threat and strengthen the stability of their societies and bolster their potential in the fight against terrorism, 15. Underscoring the importance of co-operation among the OSCE participating States and the involvement of civil society, as well as the media and the private sector, in preventing violent extremism leading to terrorism, 16. Noting the results of the Conference on OSCE Security Policy – Female Perspectives (Vienna, 23 March 2017) and the Parliamentary Conference on Combating International Terrorism (Saint Petersburg, 28 March 2017), The OSCE Parliamentary Assembly: 17. Advocates the adoption of measures consistent with the obligations of the OSCE participating States within the framework of the Organization, relying on its own resources, to eliminate conditions conducive to the spread of terrorism, bearing in mind that no conditions can serve as a pretext or justification for acts of terrorism; 18. Calls on the OSCE participating States to take effective measures so that anyone who participates or assists in the financing, planning, preparation or perpetration of terrorist acts is brought to justice, and calls on the parliaments of participating States to ensure that their national legislation and regulatory provisions define such acts as serious criminal offences, making it possible to prosecute and punish such offences in a manner that reflects their serious nature; 36