The Royal Navy has ordered sailors to abstain from alcohol for at least two days a week and meet strict Government health targets. Some sailors even fear the Navy will eventually follow its US counterpart and ban alcohol from ships completely. The proposals are revealed in official documents entitled Alcohol Policy Onboard Ships and are based on advice from military doctors. Last night, the Royal Navy said: 'The updated policy aligns with advice, ensuring our people remain fit for naval operations. Last century, the Admiralty became concerned the lunchtime rum ration was hindering sailors' ability to operate increasingly complex weapons systems and navigational tools.