The UK is already importing 75% of its food from overseas, with a lot of it disguised via firms like Union International Group (A British company owned by the Vestey tycoons), which import food from South America.
Deloittes agricultural consultancy arm reckons that any farm under 5000 acres is not financially viable and increasingly 5000 farms a year are going into bankruptcy, whilst more are being sold off because more and more young people across the UK and the world no longer wish to work in or on farms.
Some 150 farmers commit suicide every year and the Royal Navy as Dr Alf says is incapable of guarding our shipping lanes.
Former Admiral Lord West has pointed out that 17 escort vessels to accompany British shipping is a disgrace as is scrapping our one and only protection vessel.
We need to move to vertical farming, more widespread use of poly-tunnels and the use of low category prisoners and fine defaulters as ‘voluntary’ labor for hard pressed farmers.
Later on, we need to look at robots and automated tractors, combine harvesters, bailers and silage spreaders.
If we do not do this and build up our forces using National Service, then one day I can see an adversary threatening our food supply just like Germany did 100 years ago in World War 1 and then again with the U boat wolfpacks in World War 2.
That time may be faster than we think, given the fact that the age of fully cloaked stealth bombers and super-drones weighing 20 tons is upon us along with electronic countermeasures we are incapable of countering.