Nearly 12,000 military personnel from 17 nations are taking part in this year's Exercise Joint Warrior.

It is one of Europe's largest NATO exercises, operating out of Faslane, in Scotland.

It culminated on Salisbury Plain Training Area on Thursday, when JEF forces conducted urban combat operations with air support provided by Apaches, Chinooks, Wildcats and Tornados.

This included troops from the UK Parachute Regiment, the Danish Jutland Dragoon Regiment, the Lithuanian “Iron Wolf” Brigade and the Latvian Mechanised Infantry Brigade.

Watch some of the action from Ex Joint Warrior 2018:

Joint Warrior is linked to the NATO exercise programme and open to Joint Expeditionary Force (JEF) Partner Nations, including Latvia, Estonia, Lithuania and the US.

It also hosts non-NATO partners such as Australia, Finland and Sweden.

Russian Military personnel have visited Scotland to observe the exercise, in line with the Vienna Document, which aims to promote trust and transparency among the 57 states that have signed it.

Joint Warrior Type 23 frigate HMS Montrose
Picture: Upper deck weapons crew on the Type 23 frigate HMS Montrose during an exercise against fast attack craft.

The bi-annual exercise is running from the 21st April to 4th May and incorporates all three UK services.

Forces from 16 other nations including Norway, Denmark, Estonia, Latvia, Lithuania, the Netherlands, Spain, Sweden, and the US, are also taking part.

This year the training scenarios involved multiple sovereign nations disputing resources and territories; counter-terrorism and anti-smuggling activity; information warfare; and evacuation operations.

Joint Warrior Type 23 frigate HMS Montrose Wildcat
Picture: The pilot of HMS Montrose's flight carrying out preflight checks on the ships Wildcat helicopter.

The exercise provided NATO allies and partner nations the opportunity to train together across air, land, sea and cyber domains, practicing “high-end” war-fighting between near-peer adversaries.

WATCH: dropping in from the skies - Europe's largest military exercise gets underway in the UK