What does MSD stand for?

There is no Department of Defense (DoD) standard for minimum safe distance between manned or unmanned aircraft or munitions and aircraft.

The DfT also recommends a minimum safe distance of three metres between the stop line for vehicles and the crossing, but the gap on this crossing was 0.

Nats said the planes in yesterday's picture must have been at least the minimum safe distance of 1,000ft apart.

It includes fire support asset characteristics and capabilities, munitions characteristics and shell-fuze combinations, fire support coordinating measures (FSCMs), CFF procedures and when to use each mission, techniques for determining target and observer location and range and direction to a target, echelonment of fires, minimum safe distances (MSDs) and risk estimate distances (REDs), company fire support planning and execution procedures, clearance of fires and FO control options.

2 miles apart - four miles closer than the minimum safe distance required under international law.

For example, aircraft delivering munitions must stay outside the minimum safe distance of artillery shells detonating on nearby targets and stay 1000 feet from the trajectories of those and other weapons.

The fires battalion commander chairs these discussions that cover topics such as fire support actions at each step of the troop-leading procedures (TLP); company, battalion and brigade fire support rehearsals; planning factors for minimum safe distances (MSDs) and risk estimate distances (REDs); planning, coordination and execution of CAS; attack aviation air-ground integration; high-value individual (HVI) targeting; nonlethal engagements; and assessing the effects of the lethal and nonlethal targeting process.

This rule (in hundreds of meters) refers to the minimum safe distances (MSDs) outlined in "AR 385-63 Safety Policies and Procedures for Training, Target Practice and Combat" that units employ during danger-close live fires.