Some people think city fighting is all the same, but I can tell you that it isn't. In Vogen we had to fight the rebels in the streets, in buildings and in the gutters. We were ordered to clear strong points, to capture city blocks and hold buildings at all costs, and every mission was different. There were more ways to fight than there were planets in the Imperium and even more ways to die.
— Veteran Sergeant Hessel, Warhammer 40,000
In Diyala, on April 9, 2004, we're in full battle rattle. The high-intensity urban fighting we've practiced since basic training is now finally allowed to be unleashed on our enemy. There is no weak-stomached four-star general to hold back on our reins. We are again the First Infantry Division of Vietnam and the beaches of Normandy. We pour through compound gates, rifles shouldered, targets falling as we trigger our weapons. Mahdi militiamen sprint from corner to corner, but we are quick and accurate with our aim. We knock them right out of their shoes. Our Brads are rolling, unleashing volley after volley from their Bushmasters into the nearby buildings. Yet the militiamen refuse to give up the fight. Tracers from unseen enemy positions spiderweb overhead. They make us earn every house and every inch.
— SSG David Bellavia, House to House
No conventional battlefield, no riot, no "normal" breakdown in social order can possibly prepare you for the nightmare that is a city besieged...
If the goal were only to kill...an urban area could simply be bombed or burned to the ground. That would "secure" it, but where would the survivors live with their homes a pile of rubble? Urban combat is the most difficult for a variety of reasons. For starters, it takes the longest amount of time because every building, every room, every subway tunnel, every car, every sewer pipe, every nook and cranny of this massive maze must be searched.
— Max Brooks, The Zombie Survival Guide
We were closing on the Sears Tower in Chicago. Chicago, that was enough nightmares for three lifetimes. It was the middle of winter, wind whipping off the lake so hard you could barely stand, and suddenly I felt Thor's hammer smash me in the head. Slug from a high-powered hunting rifle. I never complained about our hard covers anymore after that. The gang in the tower, they had their little kingdom, and they weren't giving it up for anyone. That was one of the few times we went full convent; SAWs, nades, that's when the Bradleys started making a comeback.
— Todd Wainio, World War Z