Hennie Strydom is professor-emeritus in public law, with public international law and administrative law as teaching obligations. He specialises in public international law, environmental law and humanitarian law. Prof Strydom has published extensively in these fields of law. He served as the president of the International Law Association, as well as the President of the South African Branch of the International Law Association. He lectured on several occasions at the Palacký University on a variety of international law questions.