Complex sentence: France is a founding member of the United Nations, one of the five permanent members of the UN Security Council, and a member of the Francophonie, the G8, G20, NATO, OECD, WTO, and the Latin Union.
Split into simpler sentences: France is a founding member of the United Nations, where it serves as one of the five permanent members of the UN Security Council. It is a member of numerous international institutions, including Francophonie, the G8, G20, NATO, OECD, WTO, and the Latin Union.