As most a fan of college football in America, I am not familiar with Association football.
Same here, I never knew association football was known as soccer as well, with 11 players on the field.
What countries are associated with this "association football" league?
The Laws of soccer were originally made back in 1863 in England, but now soccer is enjoyed by the whole world. 
I saw a major increase in the popularity of soccer in the United States in the late 1980s.
Yes, soccer has grown so much in the US, over 24.4 million people play soccer in the US now!