![\"The](\"http:\/\/copenhagen-fortifications.vestvolden.info\/wp-content\/uploads\/2021\/01\/trekroner_1950.jpg\" "\\"The")
<\/a>The Trekroner Fort<\/p><\/div>\n
In 1786 the new Trekroner was commenced.
\nThe fort was framed by a frame construction,\u00a0 that was filled with soil and mud as well as material from a deepening of the port of Copenhagen.<\/p>\n
The First Battle of Copenhagen<\/p>\n
As early as 1801, before the fort was completed and armed, it participated against the English Navy in the First Battle of Copenhagen. The fort was hastily equipped with 66 cannons and 660 men. Together with the Danish Navy and some hastily equipped naval batteries, the enemy with the Admirals Parker and
\nNelson in the lead,\u00a0 was kept away form Copenhagen. However, this was not enough to avoid a defeat.<\/p>\n
The Second Battle of Copenhagen<\/h5>\n
Again in 1807, the Trekroner was active during the English terror bombardement of Copenhagen.
\nThe battle ended with large parts of Copenhagen being burned down and the Danish fleet being conquered.
\nThis insident was the first terror bombardement of a civilian population in world history,\u00a0 and the first time fire rockets were used (The Concrewe rockets, named after the inventor Sir William Concrewe)<\/p>\n
Close to a state bankruptcy there were no funds for the defense, and it was not until 1818 that King Christian the 7th. had funds for completion of the Trekroner.\u00a0 It was finished in 1828.
\nThe bulwarks were now reinforced with a a three-meter-thick wall, and at the throat parapets with embrasures were constructed.<\/p>\n
The Trekroner was expanded<\/h5>\n
In the years 1838 to 1839, the two peacetime barracks were erected.
\nDuring the first and second Dansih-Prussian wars (1848-1850 and 1864),\u00a0 the fort was staffed with 390 men.
\nIn the period 1865 to 1869, the fort was expanded with the casemate building, some batteries with ammunition storages in the traverses between the cannons and a sea mine cortrol station.
\nEverything was built in the new material of the time – concrete.
\nIn fact, Denmark was the first nation to use concrete for military purposes.<\/p>\n
In 1868 the lighthouse was built.<\/p>\n
The Casemate Building<\/h5>\n
The casemate building is on three floors.
\nThe lower floor contains accommodation for the crew and ammunition storages. In the middle is the artillery floor and on top af the fort the open emplacements separated by traverses. In the traverses storags for ammunitin were built in, close to the cannons.<\/p>\n
At the fort facers and flanks there were a number of open emplacements, also separated by traverses with built-in ammunition storages.
\nThe fort was extremely heavily armed.<\/p>\n
The Armament<\/h5>\n
Around the turn of the century, the armament consisted of:<\/p>\n