First, make Cornwallis send British troops to Charlottesville to attack. Then, you will earn 10 points.
"I might as well just stay here until my soldiers come to rescue me."
Next, make a soldier come inside were the meeting was taking place in and say "The British are coming to attack" After that make the government say "What? We have to get out of here. From there you will earn 10 points.
Now, make both British and American soldiers fight and make the Americans say "CHARGE." After, you will earn 10 points.
"I surrender Washington."
Afterwards, make Cornwallis go into sea and say "I might as well just stay here until my soldiers come and rescue me. Soon, you will earn 10 points.
Later, make Cornwallis get mad and then, you will earn 10 points.
At last, make Cornwallis surrender and make him say "I surrender Washington." Lastly, you will earn 20 points because Cornwallis surrendered.