More than 3,000 troops are taking part in "Operation Joint Warrior" in and around Galloway Forest in Dumfriesshire.
A group of British and French paratroopers are also carrying out a parachute drop near to the Braid Fell area.
More top news
A new sports facility is set to be added to the National Trust's Fell Foot park, following a £500,000 investment from Sport England.
Stephen Whatmough has been sentenced to 40 months in prison after being caught driving illegally with £100,000 worth of drugs.
It's been one year since the floods destroyed thousands of homes across the region, and hundreds of people are still unable to move back in.