How a German attack on Ireland could aid Atlantic convoys

What would happen if Germany attempted an airborne attack on Ireland?

The force would be difficult to deliver and reinforce, while the attack could bring Ireland into the war and open its airfields and Atlantic ports to Allied convoy and anti-submarine forces.

German troops would have to cross British airspace or take a long route around Britain to reach Ireland. Survivors would face Irish armed forces and veterans who had fought Germany in World War I. Reinforcing an isolated landing would create another serious problem. An attack could turn Ireland into Germany's enemy and give Britain access to Irish airfields and convoy assembly areas.