 These movements established the area west of New Brunswick up to the Millstone and Raritan rivers as a no man's land between the two forces.Following the British retreat, Somerset Court House became one of several outposts garrisoned by Patriot militia companies, with support from the Continental Army.A British foraging party of 500 men, led by Lieutenant Colonel Robert Abercromby of the 37th Foot, left New Brunswick on January 20, and headed west toward the Millstone River.