Although Eisenhower was still in Washington working under US Chief of Staff Gen. George Marshall at the time of Dieppe, the book mentions the Dieppe raid in its summary of the war in Europe and Africa prior to Eisenhower's arrival in the Mediterranean Theater. It also mentions Mountbatten in connection with the planning for Dieppe.
According to David Eisenhower's book, citing "Bodyguard of Lies" by Anthony Cave Brown (1975), "Dieppe was first approved as Operation RUTTER on May 13, then cancelled on July 8, the day Churchill wired Roosevelt with what he thought would be accepted as the final British rejection of SLEDGEHAMMER. On July 15, [British Gen.] Dill cabled from Washington that [American Chief of Staff Gen.] Marshall had not given up the fight [for SLEDGEHAMMER] and would reopen the issue once he arrived in London. The Prime minister then revived Dieppe, now code-named JUBILEE. The second round of delibertions on the raid was kept within a narrow circle of planners and certain members of the War Cabinet. No minutes were kept of the meetings." David Eisenhower apparently includes Dieppe in his book becase Dieppe "would influence techniques and tactics chosen for the [Normandy invasion] plan presented to Eisenhower on January 17, 1944."
BTW, why would the IRA later kill Mountbatten? Did he have any connection to the goings-on in Ireland?
I don’t know what “Sledgehammer” was” but” Rutter” was cancelled because of the weather and the fact that once “Rutter” set sail they had been seen by the Germans and surprise was lost. Mountbatten was a Grandson of Queen Victoria who reasoned and stated so that the Germans knew about “Rutter” and that they would not expect that someone would be so stupid to attack in the same place at a later date. “Rutter” was renamed “Jubilee” and went ahead . Montgomery and Roberts(commander of the Canadian 2nd division) both objected but Mountbatten pushed ahead anyway without getting the required authorization from the joint chiefs of staff.
Mountbatten had an estate in Ireland and he chose to ignore security advice not to sail his boat . He did anyway , the IRA had planted a bomb on board and his death brought attention to the IRA cause.
His titles etc , as if some how his poo isn’t poo ,
Admiral of the Fleet The Right Honourable The Earl Mountbatten of Burma, KG, GCB, OM, GCSI, GCIE, GCVO, DSO, PC