A militia is a "a body of citizens enrolled for military service, and called out periodically for drill but serving full time only in emergencies."
A soldier is"a person who serves in an army; a person engaged in military service".
Compare how the colonial milita is different than the British soldiers as seen on page 29. How might the difference between a "militia" and a "soldier" impact a battle (make a prediction based on the definitions and what you've read in this book).