Complex sentence: Immediately after leaving NATO, Ismay was honoured by Queen Elizabeth II with an appointment to the Order of the Garter and was appointed to boards of several corporations including the Ashanti Goldfields Corporation.
Split into simpler sentences: Immediately after leaving NATO, Ismay was honoured by Queen Elizabeth II with an appointment to the Order of the Garter. He was appointed to boards of several corporations including the Ashanti Goldfields Corporation.