1968. The only year since the establishment of the Royal Air Force in which not one single British serviceman was killed in action anywhere in the world.
Our politicians had been wise enough not to get us suckered into The American War in Vietnam and Norn Iron hadn't yet kicked off.
The Phoney War against the Russian Bear had enabled the acquisition of some serious kick-arse kit, such as Vulcan, Lightning and the 'toom, but we had no-one fighting against us. (Ok, a few sand bunnies in Oman and Aden, and the odd jungle bunny in Sarawak, but nothing to worry about)
Oh yes, and we had buckets of sunshine which didn't need some code to be issued by the politicians, just use a screwdriver to open a couple of Dzus fasteners, then use a bicycle key to arm to blighter and then turn a couple of knobs to select airburst or groundburst and choose the desired yield.
Marvellous! Happy days!!