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The resurgence of expeditionary warfare in the first two decades of the 21st century has seen the emergence of gun-armed wheeled vehicles , sometimes called " protected gun systems " , which may bear a superficial resemblance to tank destroyers , but are employed as direct fire support units typically providing support in low-intensity operations such as the wars in Iraq and Afghanistan .
 location: Afghanistan
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Afghanistan