Simplify the following text for a Grade 10 native English-speaking person.
Original: In 1987 , Reagan appointed him Under Secretary of State for Security Assistance , Science and Technology , where he served until the end of Reagan 's term , shortly after which he was selected to head the VA.
Simplified: In 1987 , Reagan picked him to be Under Secretary of State for Security Assistance , Science and Technology , where he served until the end of Reagan 's term .