Nieuwersluis. Nieuwersluis is a small place within the municipality of Stichtse Vecht in the Dutch province of Utrecht. It is halfway between Loenen and Breukelen. Nieuwersluis is built around a lock between the rivers Vecht and Angstel. On May 1, 1817, Nieuwersluis became part of the municipality of Loenen-Nieuwersluis. Two years later, on October 1, 1819, the municipalities of Loenen-Kronenburg and Loenen-Nieuwersluis merged into one municipality of Loenen. The latter municipality was merged into the newly formed municipality of Stichtse Vecht on 1 January 2011. Fort Nieuwersluis was built in 1673 as part of the Old Dutch Waterline. Since then, the fort has been rebuilt and strengthened several times. In 1815 the fort became part of the New Dutch Waterline. The fort has been mobilized three times, but actual combat operations at the fort never took place. The fort is currently managed by Natuurmonumenten and is open to the public. There were also farms in the vicinity of the fort and Nieuwersluis could therefore be regarded as a fortress village. Part of Nieuwersluis is a protected village view. The place has dozens of national monuments. Northwest of the village, directly on the A2 is the Oukoper Molen, a polder mill from 1644. From 1843 to 1953, Nieuwersluis had a station, station Nieuwersluis-Loenen, where all trains, including international ones, stopped until 1913; the owner of the Sterreschans estate had managed to negotiate this when selling his land to the railways. Since the construction of the Merwede Canal, which was taken into use in 1892, this station was in fact only adjacent to a few meadows. This right was not fully bought off until 1953, and the station was demolished a few years later. On the east side of the Vecht in Nieuwersluis is the former Pupil School from 1877, founded under the patronage of King Willem III. Above the central front door is the name Pupil School and above the two front doors of the corner buildings is the W van Willem. A maximum of 250 boys from the age of 12 were taught reading, writing, arithmetic, geography and history, swimming and skating. When they turned 16 they went to military service. Usually the parents had no money to pay for the upbringing themselves. The term pupils originated in the Dutch East Indies, where Dutch soldiers often had children with native women. These children remained in the encampment. In 1845 the 4th Battalion established a Corps Pupils in Gombong on Java; the costs were borne by the officers. Children here received primary education from the age of 5; the older children also received training in some military subjects. When this experiment turned out to be successful, it also became known in the Netherlands, where the Nieuwersluis Pupil School was founded after the example of Gombong. Later the building was used as a barracks and was given a function as a penitentiary barracks, called Militair Penitentiair Centrum Nieuwersluis. Among other things, the punished had to run to Utrecht to swim there and also received heavy training with assault courses, etc. In the middle of the twentieth century, the expression "Nieuwersluis" was synonymous with a punishment regime among soldiers: He has Nieuwersluis or He sits in Nieuwersluis. In the 1970s, unauthorized conscientious objectors were also imprisoned here. The cases of conscientious objectors Kees Vellekoop and Adriaan Slooff in particular received national media attention. A second building, behind the main building, is today used as a women's penitentiary. On the Rijksstraatweg, on the west side of the Vecht, there is another old barracks with a nearby bunker.