The Residence Of Imam Yahya, Dar Al-Hajar Stone House, Wadi Dhar, Sana, Yemen

He created a regular army in 1919 that enlisted soldiers from the surrounding tribes to Sanaa; from the tribes of Sanhan, Bani Harthi, and Bani Hushaish. He signed many treaties to recognise Yemen as a Sovereign State. The first was signing the Italo-Yemeni Treaty in 1926.
Due to conflicting tribes in the border areas between Saudi Arabia, and Yemen that escalated a war ensued that was ended in 1934 in the signing of the Taif treat between Saudi Arabia and Yemen. The treaty was the basis for the final territorial agreement between both countries concluded during the reign of King Fahd bin Abdulaziz, and President Ali Saleh.