Thomas Doherty was a driver in the mechanical transport section of the RAF and was based in Singapore in the 1940s.
Connor Postles says he felt isolated after leaving the Army and now wants to help others.
The traditionally rigged ships are taking part in a sail co-ordinated by charity Turn to Starboard.
Two tall ships taking part in a 2,000-mile charity voyage around the country have docked in Hull.
The duchess toured the centre and met Chelsea Pensioners who offer public tours of the Hospital.
Arnold Walton from Rotherham is guest of honour at a ceremony marking the liberation of Arnhem.
Worcestershire is home to more than 21,000 veterans and more than 500 current armed forces personnel.
Vet's Shed supports, and is run by, ex-military men as a place to meet up or "just take time out".
