The US has doubled the number of its Avenger-class mine hunters
in the region to eight; it has deployed more MH-53 mine-sweeping helicopters and a large number of remotely-operated submersible mine hunters
HMS Grimsby is a mine hunter
which can fight back if it needs to, but its main function is defensive.
Organiser PamBrown said: ``HMS Invincible will provide a fantastic backdrop to the commemoration.'' Royal Navy training boats HMS Biter and HMS Charger, and a mine hunter
HMS Walney, will sail down the Mersey on Friday.
"The Sandown-Class mine hunter
had been due to sail into the city and remain in port until Thursday.
The Canadian vessel will join the visiting vessels which include the 60-metre USS Chinook Cyclone Class coastal patrol boat from the US, the HMS Shorham and HMS Ramsey 52.5 metre mine hunter
vessels from the UK, the French FS L'adroit 87 metre Gowend class patrol vessel, one 88.6 metre ITS Camandanti Cigala Fulgosi vessel from Italy, and one PNS Jurrat, Jurrat class missile boat from Pakistan.
Mr Cook had led a long campaign for the removal of the 400-tonne former Royal Navy mine hunter
after warning it could cause an "environmental catastrophe" on the River Tees.
He was selected as the commissioning Commanding Officer of the first ever indigenously built Tripartite Mine Hunter
PNS MUJAHID, and has also performed the duties of Commander 21st Mine Warfare Squadron.
The programme also includes visits from the tall ship Stavros S Niarchos, the Matthew - a full-size replica of John Cabot's ship which discovered Newfoundland more than 500 years ago - and the Royal Navy mine hunter
TWO Coventry brothers and ancestors of Admiral Lord Nelson's are serving on the same Royal Navy warship in the Gulf Lieutenant Commander Chris Nelson, 38, and his brother, Petty Officer Philip Nelson, 31, are both serving on the mine hunter
HMS Atherstone in the Arabian Gulf.
By 1974 he had qualified as a helicopter pilot and the same year joined 845 Naval Air Squadron, which operated from the commando carrier HMS Hermes, before taking command of the coastal mine hunter
HMS Bronington in 1976.
It will join a fleet of 11 ships, including aRoyalNavy mine hunter
and vessels from the Norwegian, Dutch and Polish fleets, which will be open to the public.
Sized between a patrol craft and small corvette, these ships have modular roll-on/roll-off containerized weapons stations, allowing rapid conversion of the vessel to mine hunter
, mine sweeper, combat unit, anti-submarine warfare or other roles.