Brooke was
commissioned into the
Grenadier Guards as a
second lieutenant on 12 August 1899. He served in the
Second Boer War in South Africa, which began later that year, and was promoted to
lieutenant on 14 December 1900. Following the end of the war in June 1902 he returned with most of the men of the guards regiments on board the SS
Lake Michigan, which arrived in Southampton in October 1902. He then served with the
Egyptian Army. in
France. commanding the
2nd Guards Brigade but was gassed on the
Western Front. He was
mentioned in despatches seven times throughout the war. After the war Brooke became
commanding officer of the 1st Battalion
Grenadier Guards and then, in 1923, went on to be
commander of the Grenadier Guards and Regimental District. He was made Brigadier on the General Staff at Eastern Command in India in 1931 and
Major-General commanding the Brigade of Guards and
General Officer Commanding London District in 1934. He retired from the army in 1939 but, with the
Second World War underway, he was recalled as GOC London District. He retired again in 1942. Brooke was
British Red Cross Commissioner with the Allied Army of Liberation from 1943 to 1945. ==Personal life==