1917: The French freighter Mont Blanc, loaded with 5,000 tons of high explosives, collided with the Norwegian steamer Imo in the harbor of Halifax, Nova Scotia.  The resulting fire detonated the munitions, killing 1,635 people and leveling much of Halifax and its environs.  Men from the CGC Morrill were landed to provide assistance.  This disaster led to the creation of captains of the ports for the major US ports.  The Coast Guard was tasked with the new duty.
1944: Ormoc Landing, Philippine Islands
1946: The number of Coast Guardsmen on active duty had been dropped to 22,156 in order to meet budgetary requirements.  Many "lifeboat stations had to be placed in a limited caretaker or inactive status and some vessels tied up because they lacked complements ."