By Leigh Mcmanus Brits are rushing to stock up on survival essentials due to fears of a nuclear war, an expert claims. Leigh Price said there’s been an increase in people buying long-term food supplies and water filters, as well as signing up for survival courses. He noted that sales spiked when Russia invaded Ukraine and the anxiety about war continues to drive purchases. Price, who served in the Army from 1991 to 1996, owns and runs Bug Out in Builth Wells, Powys – a prepper store that sells essentials one might need in the event of a catastrophic event like armed conflict or nuclear war. He…