Conversation so far:
What branch of the Military was Tammy Duckworth in?
United States Army
When was Tammy Duckworth first deployed?
Tammy Duckworth was deployed to Iraq in 2004.
Where in Iraq was Tammy Duckworth based?
Was Tammy Duckworth injured while in the military?
She lost her right leg near the hip and her left leg below the knee.

Question: What happened to cause these injuries?
Self-contained rewrite: What happened to cause Tammy Duckworth's injuries?