Parker defeated a Danish-Norwegian fleet anchored near Copenhagen. Vice-Admiral Horatio Nelson led the main attack. He famously disobeyed Parker's order to withdraw, destroying many of the Dano-Norwegian ships before a truce was agreed. Copenhagen is often considered to be Nelson's hardest-fought battle, surpassing even the heavy fighting at Trafalgar. It was during this battle that Lord Nelson famously "put the telescope to the blind eye" in order not to see Admiral Parker's signal to cease fire.
The Second Battle of Copenhagen (or the Bombardment of Copenhagen) (16 August – 5 September 1807) was from a British point of view a preemptive attack on Copenhagen, targeting the civilian population in order to seize the Dano-Norwegian fleet. But from a Danish point of view the battle was a terror bombardment on their capital. Particularly notable was the use of incendiary Congreve rockets (containing phosphorus, which cannot be extinguished with water) that randomly hit the city. Few houses with straw roofs remained after the bombardment. The largest church, Vor frue kirke, was destroyed by the sea artillery. Several historians consider this battle was the first terror attack against a major European city in modern times. The confiscation of the navy, would later source the term to Copenhagenize.
The British landed 30,000 men and surrounded Copenhagen. The attack continued for the next three days, killing some 2,000 civilians and destroying most of the city. The devastation was so great because Copenhagen relied on an old defence-line whose limited range could not reach the British ships and their longer-range artillery. Not until the 1850s were the ramparts of the city opened to allow new housing to be built around The Lakes (Danish: Søerne) that bordered the old defences to the west. This dramatic increase of space was long overdue, because the old ramparts were out of date as a defence system, and because of bad sanitation in the old city. Before the
