Brigadier-General Sir Ormonde de l'Épée Winter, KBE, CB, CMG, DSO, was a British Army officer and author who, after service in the First World War, was responsible for intelligence operations in Ireland during the Anglo-Irish War. He later joined the British Fascists and fought for the Finnish Army in the Winter War.

The Cairo Gang was a group of British military intelligence agents who were sent to Dublin during the Irish War of Independence to identify prominent members of the Irish Republican Army (IRA) with, according to information gathered by the IRA Intelligence Department (IRAID), the intention of disrupting the IRA by assassination. Originally commanded by British Army General Gerald Boyd, they were known officially as the Dublin District Special Branch (DDSB) and also as D Branch.