1680, a plan was made to move the fleet out of the city. Responsibility for the plan was given to Admiral Niels Juel. West of a sandbank called Revshalen, old ships were scuttled after being filled with stones. In 1685, a defence wall with seven bastions was built. The bastions still exist today, and in Carls and Wilhems Bastion, one can still see the original black powder depots. These depots are Holmen's oldest buildings, built in 1688 and 1690. The northern bastion was Charlotte Amalies Bastion, and north of this two cannon batteries were established, "Batteriet Quintus" and "Batteriet Neptunus". The latter's name came from the sunken ship which was the foundation for the battery. This battery was later renamed to "Christiani Sixti Batteri", or "Christian the Sixth's Battery", but is known today as "Batteriet Sixtus" or just "Sixtus". The sinking of ships continued, filled with mud from the harbor and the trash from Copenhagen's streets. In certain streets, there was over a meter of trash, so there was plenty to take. This is how the island given the name Nyholm was created. On Nyholm, the foundation for a new shipyard was created. The first ship which was set to sea from this shipyard was Dannebrog in 1692. This ship was blown up on October the 4th, 1710, in a battle against the Swedes in Køge Bugt. Afterwards, the constructions of all large ships were moved to Nyholm, and on Gammelholm, only smaller ships were built. After 1692, several ships were built on Nyholm and in 1750, a Danish king, then Frederik V, wore a naval uniform for the first time in connection with the christening of a new ship. In 1807, following the Second Battle of Copenhagen, the English destroyed three ships within the shipyard at Nyholm, but even though these were poor times for the Navy, ship construction continued at Nyholm. The last ship to be launched from Nyholm was launched in 1918, after which ship construction and several other operations were moved to Frederiksholm, which was to the south. The shipyard was separated from the Navy and became a civilian operation with its own director. Arsenaløen Holmen's southernmost island is Arsenaløen, or Arsenal Island. While development on Nyholm was continuing, a little island by the name of Motzmanns Plads, just north of Christianshavn, was bought. Later it was renamed to Christiansholm. A new island was created, with