[North Yemen Civil War map] USAF Operational Navigation Chart ONC J-6 Red Sea, 3rd Edition, Scale 1:1,000,000 (Saudi Arabia, Yemen, UAR Egypt, Sudan, Ethiopia)

Colour printed paper map 147x105cm. Near fine, neatly folded with some spotting. Base information completed April 1960, revised March 1967, air information current through 3 April 1967, lithographed by CPP 5-67. Roughly centred on Mecca, this is bounded by UAR Egypt, Sudan and Ethiopia (W), the Rub al Khali (E), and Yemen (S). This Third Edition was issued during the North Yemen Civil War (1962-70) that saw the deposed Imam Badr escape into the mountains on the Saudi border to raise a force among the Zaydi and seek Saudi support. He was also supported by Jordan and Israel, with the Republicans supported by Nasser's Egypt. By 1967 Egypt was committing 130,000 troops to the conflict, which is believed to have contributed to its poor performance in the Six Day War in June. The Saudi-Yemen border is drawn here from the Red Sea coast as far as Najran, beyond which the line ends with a large area labelled "boundaries in this area are undetermined". Colour tinted for altitude with contours, spot heights, notes and about terrain (with straight line labelled "limits of reliable relief" and areas labelled "relief data incomplete"); international boundaries; settlements of various size; rail, roads and tracks, etc. Aeronautical information includes different types of aerodrome (several marked abandoned or not usable), vertical obstructions with heights, and Prohibited Areas over Saudi cities with related warnings. …