أحمد بن يحيى
Imam Yahya was assassinated in an unsuccessful coup d'état in 1948 but was eventually succeeded by a firm heir - Yahya's son, Imam Ahmad bin Yahya, who regained power several months later. His reign was marked by growing development, openness and renewed friction with the United Kingdom over the British presence in the south that stood in the way of his aspirations for the creation of Greater Yemen. He was slightly more forward-thinking than his father and was more open to foreign contacts. Nonetheless, his regime, like his father's, was autocratic and semi-medieval in character; even the most mundane measures required his personal approval.