| 21. | His tour of duty ended at the end of February 2007.
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| 22. | Smith was in his second 12-month tour of duty in Vietnam.
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| 23. | He was then offered a second tour of duty in India.
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| 24. | Chappie entered politics after his tour of duty ended in Korea.
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| 25. | Krulak won numerous medals and decorations during two tours of duty in Vietnam.
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| 26. | This was his second tour of duty in Iraq, she said.
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| 27. | Swenson has performed 150 operations since his tour of duty began in February.
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| 28. | Delta Force squadrons tours of duty in Iraq lasted 90 days.
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| 29. | His second tour of duty could begin Sunday night at home against Edmonton.
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| 30. | Giant solar wings and the Destiny laboratory arrived during their tour of duty.
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