Wait for it....Drumbeat....Drumbeat....Drumbeat....Drumbeat
1/4 of all Allied Merchant losses where during Admiral Kings mishandled response to
Operation Paukenschlag (Operation Drumbeat and other follow on Ops) the German assault on East Coast shipping in 1942.
To confound this pretty much any available suitable Long Range Maritime Patrol Plane was being horded by the bomber barons with far too few British Squadrons operating VLR MPAs (only one barely in double figures of Aircraft operated the VLR version of the Liberator - No 120 Squadron) and the USN squadrons were operating everywhere the U-boats were not.
This very sorry situation was not really resolved until March 1943 when the US and British Governments were forced by events to override the Bomber Barons and massively increase the number of 'suitable' aircraft to the mission of Long Range Maritime Patrol at a time when the number of Escort groups, weapon systems, Escort carriers and the experience of USN and RCN approched that of the RN was reaching a tipping point anyway.
More should and easily could have been done earlier particularly with regards to providing enough Long Range planes.
As for Land campaigns
Yeah Italy could have been done better.
Other than that the Wallies did reasonably well considering their opponent!
But a few things -
Brest should have been captured - I think it was 4th Armoured Division was halted unnecessarily during Cobra - and by the time it got moving again the Germans had managed to massively reinforce the area.
Paris can wait - Logistics are more important.
I often see Op MG being critiqued - with the Schieldt operations being a better use of the resources (Monty agreed with that assessment after the fact).
One of the missed opportunities was the British army not pushing on after capturing Antwerp. The problem was that the Area was in the 1st Canadian Armys area of responsibility.
A simple fix with Ike shifting lines of responsibility etc reducing the area that 1st CDN Army was responsible for and freeing up British 2nd Army with perhaps Hodges First army taking over some of the responsibility from the British in turn - but this did not happen and it gave the Canadians too much to do in to short a time.
I think MG is an obvious operation as it outflanks Germany's Western defences and a lot of the unsuitable ground on the Franco-German Boarder and extends the front line and threatens the Ruhr with a right hook through the Peel Line and onto the North German Plain.
Despite all the issues had 82nd captured the Bridge on the afternoon of Day 1 then it possibly might have worked.
At the very least it pushes Rocket launch sites out of range of London and frees up much more of the Netherlands and likely traps 15th Army.
In addition it extends the front line by a good 100-150 KMs and likely butterflies the Bulge as those troops are likely used to defend this right hook into the Ruhr rather than be used in the hair brain scheme that was the Battle of the Bulge.
Better than butting heads along the German-French border and suffering losses like those in Hurtgen Forest and elsewhere
On the subject of the Ruhr
After the USAAF and Bomber Command are freed up from supporting the Normandy invasion - instead of going city busting - instead go round 2 with the Ruhr and target other specialised industries and knock out major transport hubs (viaducts, tunnels etc for both rail and canal).
The subsequent loss in production even if it was similar to the Earlier Ruhr campaign would be crippling to the German war machine and its likely to be more successful given the better technology available to the Allies and improved numbers over 1943!.
Obviously there is the Russians and there is a lot there to discuss!