Families of submariners on the front line of Britain's defence against Vladimir Putin have spoken of their pride as they anxiously awaited their return. The Mirror accompanied Keir Starmer aboard one of the Vanguard-Class submarines off the coast of Scotland on "Day Zero", its return to UK waters after months at sea. The nuclear-armed vessel patrolled the deep for a record 206-days, ready at any moment to fire Trident missiles as part of the UK nuclear deterrent. The silent sacrifice of its 160-