The Threat to Oman from PDRY
The sultan had been worried about the threat posed to Oman long before the attack on Habrut  on the 5th of May.

In February he had raised his concerns and considered the need for either Interceptor Aircraft and/or an Air Defence system
The British Ambassador, Mr Hawley, had called on the Sultan and reported back to the Foreign and Commonwealth Office
A few days later there was a further move on the part of the PDRY which caused some anxiety
The Documents above are from the PRO at Kew and are reproduced under the OGL conditions. relating to Crown Copyright