“Thus, under the aegis of late nineteenth- and early twentieth-century Western imperialism, missionaries were able to do what had once been unthinkable in Islamic state domains: to attempt openly to convert Muslims to Christianity.” (p 99)
Sharkey, Heather J. 'Arabic Antimissionary Treatises: Muslim Responses to Christian Evangelism in the Modern Middle East' in the International Bulletin for Missionary Research, Vol 28:3, July 2004, pp 98-104.