21078
In 1775 , without sufficient popular support at home to supply enlistments for the British Army overseas , London had to look elsewhere to find the number of troops required to put down an expanding revolt in the Thirteen Colonies .
 British Army, London
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 British Army, London