The battle took place in Yorktown, Virginia, near the York River. After the French fleet defeated a<u> British</u> fleet, Cornwallis was cut off and had to surrender to the French and the Continental Army. Eventually, it led to the Treaty of Paris in 1783, two years later.
Yes, because the act of being selfish is something we do to keep ourself alive, if we were constantly selfless we would not be ensured of our own survival.
The leader was waiting for the right time to deliver the message.