The battles of Trenton and Princeton were a boost to the morale of the patriot cause, leading many recruits to join the Continental Army in the spring. After defeating the Hessians at the Battle of Trenton on the morning of December 26, 1776, Washington withdrew back to Pennsylvania. Likewise, why was the Battle of Trenton important? The surprise victory at Trenton was important to the American cause for several reasons: For the first time, Washington's forces had defeated a regular army in the field. The victory sharply increased morale. New enlistments were stimulated and many of the current soldiers reenlisted. Likewise, why was the Battle of Trenton and Princeton significant? Importance of the Battles of Trenton and Princeton The Continental Army basked in its achievements—at Princeton they had defeated a regular British army in the field. Moreover, Washington had shown that he could unite soldiers from all the colonies into an effective national force. Additionall...