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The initial US Army unit to deploy into Brčko was Task Force 3-5 CAV , a Task Force composed of individual units of the 1st Armored Division .
 US Army, Brčko
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 US Army, Brčko