sentences:  When Charles de Gaulle created the Rally of the French People (RPF) in April 1947, the MRP prohibited its members from joining it.The MRP ceased to be the party of Gaullism and instead defined itself as Christian Democrat.Tripartisme collapsed with the May 1947 crisis in which Ramadier's government excluded the Communist ministers from participating; this was the event that marked the official start of the Cold War in France.