More than 3,000 troops including British and French paratroopers are taking part in a joint training exercise in the Galloway Forest near Dalbeattie.
It will involve a parachute drop in the Braid Fell area, as well as a substantial amount of fixed wing and helicopter flying.
Routine movement of MOD vehicles can be expected between Galloway Forest and the north of Dalbeattie, and convoys may be present on the A75.
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