Conversation so far:
When did Tammy Duckworth enlist in the military?
Tammy Duckworth joined the Army Reserve Officers' Training Corps as a graduate student at George Washington University in 1990.
Was Tammy Duckworth ever deployed overseas?
Tammy Duckworth was deployed to Iraq in 2004.

Question: Was she injured in Iraq?
Self-contained rewrite: Was Tammy Duckworth injured in Iraq?