Respuesta :

1) We were fighting on land
3)we did a surprise attack on Britain that George Washington had lead
3)The British thought this war was a joke and didn't take it's serious BUT WE DID :) anyway they thought they were going to win..... but no we did! >.< :) xD
That's the 3 reason The Americans Won The War!!!
*PLEASE GIVE ME A THANKS (BY PRESSING THE THANKS BUTTON! :) :D xD 
* I WAS THE FIRST ONE TO ANSWER YOUR QUESTION LOL xD