 Complete the following phrase:  On 2 April 1801 a British fleet under the command of Admiral Sir Hyde Parker fought and defeated a Danish-Norwegian fleet anchored just off Copenhagen. Vice-Admiral Horatio Nelson led the main attack. He famously disobeyed Parkers order to withdraw, destroying many of the Dano-Norwegian ships before a truce was agreed. Copenhagen is often considered to be Nelsons hardest fought battle, surpassing even the heavy fighting at 