In December 1776, general Washington led his forded across the Delaware/Ohio River. The continental Army launched a surprise attack against forces in the battle of bunker hill / Trenton

The correct answers are

Delaware

and

Trenton

Explanation:

In the war of Independence, General Washington and his forces crossed the famous Delaware River and attack British forces in New Jersey.

Due to the size of the river and the almost impossible task, many British forces were caught off guard and suffered heavy causalities.

This event is historically seen as part of the Battle of Trenton which despite being a small 'skirmish' was a pivot moment in American history.