The U.S. Army’s Ready First Brigade Combat Team (1st Armored Division) adopted a radical and innovative strategy to take back Ramadi from the malevolent clutches of the insurgency—Seize, Clear, Hold, Build. It called for U.S. forces to penetrate into the most dangerous enemy-held neighborhoods, push back insurgent fighters, and construct permanent U.S. combat outposts from which to base further operations. Iraqi soldiers were brought in to take part in the effort. Once a foothold was established in enemy territory, the next step required a show of force in enemy controlled areas and engagement with the Iraqi populace in the neighborhood. Though the battles raged around them, hundreds of thousands of civilians lived in the city and simply tried to survive. Securing the people and protecting them from the brutal jihadi fighters that hid among them was the key to victory. Integral to the success of this strategy were cordon and search operations—clearing through city blocks house by house. Often executed during daylight hours, these operations could be treacherous for the U.S. Army Soldiers, Marines, and Iraqi troops as they cordoned off neighborhoods (or sectors) and moved street to street, building to building through some of the most violent areas of the city.
(excerpt from Extreme Ownership: How U.S. Navy SEALs Lead and Win which I am currently thinking about)