Simplify the following text for a Grade 10 native English-speaking person.
Original: Wojciech Witold Jaruzelski ( pronounced ; born 6 July 1923 ) is a retired Polish military officer and Communist politician .
Simplified: Wojciech Witold Jaruzelski ( born July 6 , 1923 in KurÃ w ) is a Polish politician and the President of Poland from July 1989 to December 1990 .