Complex sentence: MacLean was decorated posthumously with the Order of Prince Branimir by the Croatian President Stjepan Mesić for humanitarian aid to the Republic of Croatia during the Croatian War of Independence, and for international affirmation of Croatia.
Split into simpler sentences: MacLean was decorated with the Order of Prince Branimir by the Croatian President Stjepan Mesić. The decoration was awarded posthumously for humanitarian aid to the Republic of Croatia during the Croatian War of Independence, and for international affirmation of Croatia.