The Washington Post featured this story on Second Lt. Aaron Singh Mann, 26, of Virginia. Explaining his decision, he said:
"I just felt a pull . . . . Something inside of you is pulling you. You can't explain it." As for his father:

Surjit Mann, who wears a turban to cover his uncut hair in accordance with his faith as a Sikh, remembered how torn he initially felt. "It's my only son," he said. "It's not an easy decision, especially when people think you are a terrorist" because of the turban and beard.

[HT: SM]