My dad joined up at the day after PH. He turned 20 in flight school. Thought the war would be over in 6 months and this would be a great adventure to go on. 20 hours of total flight time later and he had Germans in planes shooting at him in his plane. Up until that time he had only shot at mostly sheep in the English countryside for training.
He flew bomber escort in P-47s until the P-51 was delivered. They seriously were getting their asses kicked until the 51 arrived. He lost many fellow pilot friends monthly before the 51 arrived.
He was relieved when Germany finally surrendered. Then they put him, along with about 10,000 others on the Queen Mary, a ship built to carry 2,000 passengers, with orders to Japan. Gave him a promotion en route. He thought the war would never end. Japan surrendered before they crossed the Atlantic.
Which took weeks. He got to disembark in New York.