NATO warships were seen heading up the River Clyde yesterday as part of the Royal Navy’s annual Joint Warrior Exercise, with more expected in the coming days.

The Nato warships Almirante Juan de Borbón from Spain and KNM "Olav Trygvasson" from Norway were among those pictured on the water.

They are the first of many warships expected to be seen on the Glasgow river over the coming days, with 14 more ships part of the "multinational war exercise".

Exercise Joint Warrior is the largest military exercise in Europe, bringing together the Royal Navy, the Royal Air Force and the British Army, as well as forces from other nations.

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It involves 16 warships, 58 aircraft, and more than 3500 Military personnel from 14 different countries.

A spokesperson for the Royal Navy said: “This massive multinational war exercise involves warships, aircraft, marines and troops from UK, Nato and allied forces.”

“The exercise doesn’t only allow participating units to hone their specialist roles within a larger war-style setting – it also helps foster vital links between the UK, Nato and other allied militaries.

“The aim is to provide a complex environment in which the participants can train together, honing tactics and skills in preparation for deployment as a Combined Joint Task Force.”

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Exercise Joint Warrior officially gets underway on September 18 and is taking place over two weeks.

It will include airborne assaults, amphibious landings, evacuations, and live-fire exercises.