Voice" (). At an event in honour of Kaplan in 1993, the German convert to Islam Andreas Abu Bakr Rieger publicly "regretted" in front of hundreds of listeners that the Germans had not completely destroyed the Jews: "Like the Turks, we Germans have often had a good cause in history fought, although I have to admit that my grandfathers weren't thorough with our main enemy." Abu Issa caliphate (1993 – circa 2014) A contemporary effort to re-establish the caliphate by supporters of armed jihad that predates Abu Bakr al-Baghdadi and the Islamic State and was much less successful, was "the forgotten caliphate" of Muhammad bin ʿIssa bin Musa al Rifaʿi ("known to his followers as Abu ʿIssa"). This "microcaliphate" was founded on 3 April 1993 on the Pakistan-Afghanistan border, when Abu Issa's small number of "Afghan Arabs" followers swore loyalty (bay'ah) to him. Abu Issa, was born in the city of Zarqa, Jordan and like his followers had come to Afghanistan to wage jihad against the Soviets. Unlike them he had ancestors in the tribe of Quraysh, a traditional requirement for a caliph. The caliphate was ostensibly an attempt to unite the many other jihadis who were not his followers and who were quarrelling amongst each other. It was not successful. Abu Issa's efforts to compel them to unite under his command were met "with mockery and then force". Local Afghans also despised him and his followers. Like the later Islamic State he tried to abolition of infidel currency and rejected nationalism. According to scholar Kevin Jackson, "Abu ʿIssa issued 'sad and funny' fatwas, as Abu al-Walid puts it, notably sanctioning the use of drugs. A nexus had been forged between [Abu Issa's group] and local drug smugglers. (The fatwa led one jihadist author to dismiss Abu Issa as the 'caliph of the Muslims among drug traffickers and takfir') Abu ʿIssa also prohibited the use of paper currency and ordered his men to burn their passports." The territory under his control "did not extend beyond a few small towns" in Afghanistan's Kunar province. Eventually he did not even control this area after the Taliban took it over in the late 1990s. The caliphate then moved to London, where they "preaching to a mostly skeptical jihadi intelligentsia about the obligation of establishing a caliphate". They succeeded in attracting some jihadis (Yahya al-Bahrumi, Abu Umar al Kuwaiti) who later joined the Islamic