A leading NATO official has warned that civilians in the West should prepare for all-out war with Russia. Rob Bauer said that civilians should be prepared for the prospect of an all-out war with Russia in the next 20 years. The chairman of NATO military committee added that a conflict would require a significant change to their lives.The official’s warning comes ahead of the launch of NATO’s biggest exercise since the Cold War. The military-bloc will launch next week its biggest military exercises in decades with around 90,000 personnel set to take part. Troops will be moving to and through Europe in what NATO describes as “a simulated emerging conflict scenario with a near-peer adversary.”