5457
In December 2012 Prime Minister David Cameron announced that the combat mission would end in 2014 , and troop numbers gradually fell as the Afghan National Army took over the brunt of the fighting .
 David Cameron, Afghan National Army
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 David Cameron, Afghan National Army