AMINOR consequence of the war of 1914 was that the Turks evacuated the south Arabian country of Yemen which they had occupied since the latter part of the nineteenth century. Yahia Hamid al-Din, heir to the throne of the thirteenhundred-year-old Imamate (Muslim theocratic monarchy) was able to reestablish the power of his dynasty. During his long reign he devoted himself to four principal tasks: the restoration of internal order which had collapsed altogether during the era of Turkish domination; keeping foreigners out of Yemen which came to bear the title of “the Tibet of the Middle East”; building up his treasury which also was that of the country at large; and buying surplus World War I weapons. The last he resold to the Ethiopians and others, or he stored in caves. The locations of these supplies were known only to members of his dynasty and trusted servitors.