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PENHAUL Overnight and early this morning , the tanks and Bradley fighting vehicles of the 3rd Infantry Division backed by the Apache attack helicopters of the 11th Aviation Regiment punched through the Republican Guard defenses in and around Karbala .
 Karbala, the 3rd Infantry Division, the 11th Aviation Regiment, Republican Guard, the tanks and Bradley fighting vehicles of the 3rd Infantry Division, Bradley, the Apache attack helicopters of the 11th Aviation Regiment, Apache
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:
 Karbala, the 3rd Infantry Division, the 11th Aviation Regiment, Republican Guard, the tanks and Bradley fighting vehicles of the 3rd Infantry Division, Bradley, the Apache attack helicopters of the 11th Aviation Regiment, Apache