First Yemenite War

[2] Saudi Arabia continued to oppose South Yemen and supported the Northern Yemeni troops in the upcoming struggle.

The South Yemeni air force (PDRYAF) also started bombing the areas invaded by the Northerners, and their military positions.

In the end, South Yemeni counterattacks supported by air strikes caused over 200 casualties to the invaders, and recovered all of the lost territory.

[3] This was followed by the Cairo Agreement of 28 October,[3] which put forward a plan to unify the two countries in a "republican, national and democratic" state, based on "free and direct" elections.

[3][1] South Yemen instigated and funded a broad-based opposition movement in the north, the National Democratic Front (NDF), during the mid-1970s.