9843
U . S . - led forces were able to press farther north after defeating Iraqi Republican Guard units at Karbala and Kut ( ph ) .
 U . S, Karbala, Kut, Iraqi Republican Guard, U . S . - led forces, Iraqi Republican Guard units
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 U . S, Karbala, Kut, Iraqi Republican Guard, U . S . - led forces, Iraqi Republican Guard units