There is a high chance that had the attempt to force the straights been persevered with and the fleet managed to break into the Sea of Marmara then Istanbul would have been abandoned and the straights captured.
The US Ambassador to the Ottoman Empire Henry Morgenthau (Father of Henry Morgenthau who wrote the post war Germany Morgenthau plan that thankfully was never implemented) - who utterly despised the Ottomans (he was one of the people that blew the whistle regarding the Armenian massacre) wrote that the Ottoman leadership was grabbing every vehicle they could find to allow their family's and as many valuables as they could carry in order to flee the city and a sense of panic had gripped them with the Ottomans convinced that the defences would not hold another attempt. The German ambassador had begged the US Embassy to allow his staff and family members to seek shelter when the British and French arrived
Commodore Roger Keyes who commanded the 'small ships' remained adamant to his dying day that the reorganised mine sweepers (the civilian crews having been replaced with the crews from the sunk and crippled pre-dreads) could have successfully cleared the straights and allowed the heavy units to enter the Sea of Marmara.
The problem unfortunately was that the senior leadership 'on the ground' namely Carden, then De Roebuck 'bottled it'
They saw the loss of so many Battleships as a disaster - while Churchill saw it as a cheap price to pay given virtually every single ship with the exception of a couple of newer ships were utterly expendable (with many of the Pre Dreads slated to be decommissioned anyway) - and given what was at stake - Support for Russia, Safety of the Suez and Oil wells as well as bringing Greece, Bulgaria and Romania into the war on the Entente side and an earlier Italian entry into the war on the Entente side.
So I think a couple of things needed to be done
The US Ambassador to the Ottoman Empire Henry Morgenthau (Father of Henry Morgenthau who wrote the post war Germany Morgenthau plan that thankfully was never implemented) - who utterly despised the Ottomans (he was one of the people that blew the whistle regarding the Armenian massacre) wrote that the Ottoman leadership was grabbing every vehicle they could find to allow their family's and as many valuables as they could carry in order to flee the city and a sense of panic had gripped them with the Ottomans convinced that the defences would not hold another attempt. The German ambassador had begged the US Embassy to allow his staff and family members to seek shelter when the British and French arrived
Commodore Roger Keyes who commanded the 'small ships' remained adamant to his dying day that the reorganised mine sweepers (the civilian crews having been replaced with the crews from the sunk and crippled pre-dreads) could have successfully cleared the straights and allowed the heavy units to enter the Sea of Marmara.
The problem unfortunately was that the senior leadership 'on the ground' namely Carden, then De Roebuck 'bottled it'
They saw the loss of so many Battleships as a disaster - while Churchill saw it as a cheap price to pay given virtually every single ship with the exception of a couple of newer ships were utterly expendable (with many of the Pre Dreads slated to be decommissioned anyway) - and given what was at stake - Support for Russia, Safety of the Suez and Oil wells as well as bringing Greece, Bulgaria and Romania into the war on the Entente side and an earlier Italian entry into the war on the Entente side.
So I think a couple of things needed to be done
- No telegraphing of the attack - the shelling of the forts in early Nov was 'stupid'!
- A more concise and direct decision from both British and French Governments and continued commitment to the objective.
- Keep pressing the attack
- Judicious use of airpower for spotting purposes
- Have the minesweepers given RN crews - not civilians - from the start