Alan Brooke vs Henry Hap Arnold

In December 1941, Alan Brooke was appointed Chief of the Imperial General Staff (CIGS), the professional head of the British Army. He served in this role throughout World War II, overseeing military strategy and operations, and was a key member of the Chiefs of Staff Committee that advised Prime Minister Winston Churchill.

In January 1943, Brooke attended the Casablanca Conference with Churchill and Roosevelt, where Allied strategy for the remainder of World War II was discussed. The conference agreed on the policy of 'unconditional surrender' for the Axis powers and the invasion of Sicily, with Brooke playing a key role in shaping military plans.

In November-December 1943, Brooke attended the Tehran Conference with Churchill, Roosevelt, and Stalin. The conference coordinated Allied military strategy against Germany, including the timing of the cross-channel invasion (Operation Overlord) and the Soviet offensive, with Brooke providing military advice on the feasibility of operations.

As CIGS, Brooke was instrumental in planning the Normandy landings (D-Day) on June 6, 1944. He coordinated with Allied commanders to develop the invasion strategy, including the selection of landing beaches and the allocation of forces, which led to the successful liberation of Western Europe from Nazi occupation.

On January 1, 1944, Alan Brooke was promoted to the rank of Field Marshal, the highest rank in the British Army. This promotion recognized his exceptional service as CIGS and his contributions to Allied victory in World War II.

Arnold was appointed Commanding General of the US Army Air Forces, overseeing the expansion of the air force from 20,000 to 2.5 million personnel. He directed the strategic bombing campaigns in Europe and the Pacific.

Arnold was promoted to five-star rank as General of the Army, and later became the only officer to hold five-star rank in two US services when he was also made General of the Air Force. This recognized his role in creating an independent air force.

Arnold championed the development and production of the B-29 Superfortress, the most advanced bomber of World War II. The B-29 was used for strategic bombing of Japan and ultimately dropped the atomic bombs.

Arnold was a key advocate for the creation of an independent US Air Force, separate from the Army. The National Security Act of 1947 established the Air Force as a separate service, fulfilling Arnold's long-term goal.