Consider the question. Lieutenant Roberts was assigned as Judge Advocate on the USS Seahawk during the beginning of the War on Terrorism in 2002. He lost a leg trying to save a boy from a field of landmines in Afghanistan that year. He was transferred back to JAG HQ after his operation and proving that he was still able to meet the fitness requirements of the U.S. Navy.

Answer this question based on the passage: when did bud lose his leg in jag?
What is the step-by-step reasoning process to arrive at the answer: 2002?
The important part for answering this question is: He lost a leg trying to save a boy from a field of landmines in Afghanistan that year.