Simplify the following text for a Grade 9 native English-speaking person.
Original: In the Operation Kogo , 390,000 Chinese soldiers , led by General Tang Enbo ( æ æ ä 1\/4 ) , were deployed to defend the strategic position of Luoyang .
Simplified: In Operation Kogo , 390,000 Chinese soldiers , led by General Tang Enbo , defended Luoyang .