Saudi Arabia has mostly relied on China for the purchase of UCAVs. This has manifested in the acquisition of significant numbers of Wing Loong I, Wing Loong II and CH-4Bs from the mid-to-late 2010s onwards. These supplemented several types of South African, Italian and German-made reconnaissance UAVs already in action over Yemen since start of the Saudi Arabian-led intervention in the country in March 2015. [1] In 2019, Saudi Arabia further expanded its drone arsenal with the acquisition of the Turkish-made Lentatek Karayel-SU UCAV, which is soon to be produced in Saudi Arabia under the designation of Haboob. [2] Saudi Arabia seeks to localise at least 50% of its defence spending by 2030 as part of the country's Vision 2030, providing a stimulus for defence companies to set up indingeous production lines.