As part of Operation Tonga, the British airborne component of Operation Neptune (the official name of the D-Day), the 9th Parachute Battalion was tasked with capturing the Merville Gun Battery, whose guns were trained on Sword Beach and the British troops who would be assaulting it on the morning of the invasion.
The gun battery’s defenses were formidable. It had four reinforced concrete casemates housing four guns with a garrison of over 150 men and numerous machine gun emplacements. The battery also had an anti-tank ditch on two sides and two sets of barbed wire fences, with a minefield in between, surrounding the perimeter.
The paratroopers drilled relentlessly for their mission over the preceding months. The plan called for the 9th to land on drop zone ‘V’ along with gliders bringing in heavier equipment for the mission. Once the battalion was formed, they would assault the battery from the rear while three Horsa gliders would land directly on top of the battery bringing in paras and sappers armed with flamethrowers and explosives to clear the casemates and destroy the guns. Should the assault fail, the Royal Navy cruiser HMS Arethusa was scheduled to fire on the battery in hopes of destroying it at 5:50 am, ten minutes before the start of the landings.
Unfortunately, as was the case with most airborne units on D-Day, nearly nothing went as planned. Intense anti-aircraft fire, broken Eureka beacons, dust, darkness, and confusion all consorted to scatter the drop of the 9th Parachute Battalion across the French countryside. The Battalion Commander, Lt. Col. Terence Otway, landed nearly on top of a German headquarters. He was able to escape only when he threw a brick through the window and the confused Germans hit the ground thinking it was a grenade.
Lt. Col. Otway made his way to the assembly point to find he was nearly alone. The news only got worse from there. The five gliders carrying jeeps, anti-tank guns, and other heavy equipment never arrived. Of the men who did arrive, the heaviest weapon they had was a single Vickers machine gun. Explosives consisted of twenty Bangalore torpedoes and some Gammon bombs. There were no mortars, no anti-tank guns, no sappers, and only the orderlies from the medical team. By this time, the battalion assembled about 150 men. As one para would later put it: “Company C was about three men, which struck me as a rather limited force.” As the time to launch the attack approached, Otway decided he would have to proceed anyway, the men hitting the beach were counting on them.
When Otway and his men reached the objective, they got their first bit of good news, the advanced party scouted the objective and took it upon themselves to begin clearing and marking paths through the barbed wire and minefields, leaving only the inner wire to breach. With such a depleted force, Otway needed a new plan for the assault. With no heavy weapons, his new plan relied on the element of surprise and violence of action.
The British waited for the three gliders that were supposed to land inside the perimeter to make their attack. To their dismay, only one glider came overhead and it missed its mark. The men of the glider disembarked, intent to join their comrades for the attack on the battery but quickly ran into a German patrol and were unable to break contact. With his last hope for reinforcements dashed, Otway ordered the attack.
The Bangalores exploded and several men rushed forward to body breach the remaining wire. The rest of the men, led by Otway, charged through the breach firing from the hip and throwing grenades as they went.
Almost immediately, a murderous crossfire began from the German machine gun emplacements and cut down numerous paratroopers. The British responded with their sole machine gun. Fortunately, it was manned by one Sgt. McKeever, known for his prowess on the MG. He quickly took out three enemy guns while another three were silenced by a diversionary party assaulting the front gate. The rest of the men split into four groups and attacked the casemates.
One hardcore para, a Pvt. Tony Mead who suffered a puncture wound to the stomach when he landed in a tree, was holding his guts in with one hand while dispatching Germans with his Sten Gun in the other. Other paras threw grenades through the openings and began clearing the casemates and tunnels of the battery.
After an intense twenty-minute hand-to-hand battle, the battery was secured. The British paras took over twenty Germans prisoner, killed more than twenty more and drove off the rest. They paid dearly for their victory, however. By the time the battery was seized, only 75 of the original 150 men were still in fighting shape. Fifty men died capturing the battery while almost thirty more were wounded.
Having no sappers or proper explosives, the paratroopers improvised what they could to disable the guns. The signals officer then sent a carrier pigeon back to England with a message that the battery had been captured. He followed that up with a flare to signal the HMS Arethusa to avoid bombarding the now-friendly position.
With the battery secure, Otway rallied his remaining men and moved on to other objectives, picking up stragglers along the way. The 9th Parachute Battalion would continue fighting in Normandy and then into Northern France before being withdrawn back to England in September 1944.