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WASHINGTON _ Having punched through severely depleted Republican Guard divisions that formed Baghdad ' s outer defensive ring , U . S . Army and Marine forces are likely to pause again to test the Iraqi capital ' s inner defenses and waall but evaporated under the weight of the U . S . assault .
 WASHINGTON, Baghdad, U . S, the Iraqi capital, Iraqi, U . S, Republican Guard, U . S . Army and Marine, severely depleted Republican Guard divisions that formed Baghdad ' s outer defensive ring, that, U . S . Army and Marine forces
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:
 WASHINGTON, Baghdad, U . S, the Iraqi capital, Iraqi, U . S, Republican Guard, U . S . Army and Marine, severely depleted Republican Guard divisions that formed Baghdad ' s outer defensive ring, that, U . S . Army and Marine forces