Answer:
It is the Industrial Revolution
The men who alerted the Boston area to the arrival of the Regulars were Paul Revere and Williams Dawes.
Neutrality and Isolationism!!!
This was the point that Washington made a long, long time ago. This point was actually brought up by the supporters of the Nazi party in the United Stated before the U.S. got involved in WW2. It’s quite interesting that Washington’s quote about isolationism would be used to support the nazis though...
Hope this helps, have a great day!