Complex sentence: From 1993 to 1999, Pryce worked in the Office of the Secretary of Defense, where he negotiated nuclear disarmament agreements with Russia, Ukraine, Kazakhstan and Belarus following the collapse of the Soviet Union.
Split into simpler sentences: From 1993 to 1999, Pryce worked in the Office of the Secretary of Defense. He negotiated nuclear disarmament agreements with Russia, Ukraine, Kazakhstan and Belarus following the collapse of the Soviet Union.