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Attack and defence

The Defence Line of Amsterdam brings war stories to life and lets you delve into Dutch military history.

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Experience, enjoy and relax

The Defence Line of Amsterdam is the place to visit if you’re looking for enjoyment and relaxation at special locations in the vicinity of Amsterdam. lees meer...

Discover cultural highlights

The Defence Line of Amsterdam is your point of departure to enjoy Dutch culture.

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Experience the beauty of nature

The Defence Line of Amsterdam offers plenty of opportunities to hike and bike in beautiful surroundings and get a breath of fresh air. lees meer...

Fun activities with the kids

The forts of the Defence Line of Amsterdam are there to be discovered by every member of your family.

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Discover cultural highlights

History in Fort Aalsmeer

Fort Aalsmeer houses the CRASH Luchtoorlog en...

Luchtoorlogmuseum (Aerial Warfare Museum) in the Fort near Veldhuis

The Luchtoorlogmuseum (Aerial Warfare Museum) in...

Visit the Zuiderzee: the Fort near Edam

Enjoy the water, the views and the quaint little... read more...

The largest fort: the Fort near Spijkerboor

The Fort near Spijkerboor is located in the...

Experience, enjoy and relax

Wellness at the Fort along Nekkerweg

The Fort along Nekkerweg is the place to go for... read more...

Viewing art at the Fort near Vijfhuizen

For art lovers, the Fort near Vijfhuizen is the... read more...

Restaurant Uit & Meer at Towerfort Uitermeer

On the banks of the river Vecht, with a... read more...

Summer on the Lighthouse Island

The fort and Amsterdam's only lighthouse turn...

Attack and defence

Fort aan den Ham defending the railway

To survive enemy attacks, soldiers stationed at...

The Fort near Spijkerboor: the history of a military object

The Fort near Spijkerboor is located in the...

The hidden Fort near Edam

In the midst of a vast landscape, a small... read more...

Luchtoorlogmuseum (Aerial Warfare Museum) in the Fort near Veldhuis

The Luchtoorlogmuseum (Aerial Warfare Museum) in...

Experience the beauty of nature

Hiking along the Beemster Polder forts

The Beemster Polder is steeped in culture,...

A visit to the coast and Fort Island IJmuiden

Fort Island IJmuiden is a semi-underground...

Experience centre Fort K'ijk at Fort near Krommeniedijk

The Fort near Krommeniedijk sits beautifully...

Walking between Fort Abcoude and the Fort near Nigtevecht

The walk along the Liniepad provides a good...

Fun activities with the kids

Adventurous Fort Island IJmuiden

Explore a semi-underground fortress, try archery...

A tour of discovery in the Fort along Pampus

The Fort along Pampus is situated in Lake...

Medieval castle the Muiderslot

The Muiderslot is one of Holland’s best...

Where history comes alive

Are you looking for an educational and fun...

Planning your trip

UNESCO World Heritage

UNESCO World Heritage
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Passable part of an inundation in the form of elevated terrain, a road, (railway) embankment or waterway.

Collective term for projectile weapons.

Also called bulwark. An outward-projecting pentagonal structure, suitable for delivering flanking fire.

A storage site for military equipment. The parks in the Defence Line are spread out over sectors (sector parks) and groups (group parks).

A battery that is positioned behind armour plates.

A fort with one or more armoured artillery positions.

A number of artillery pieces combined into one group.

Shielded position from which defenders can harass the enemy.

A (low) defensive structure that extends into the moat and can be used to give flanking fire.

A space that is protected against enemy fire and is outfitted with a gun port, behind which a piece of artillery is placed.

An army division whose tasks include, amongst other things, the construction of temporary and permanent defensive structures. The term ‘engineer’ is derived from the French word ‘ingenieur’.

Also called covert way. A pathway that is protected from enemy fire by an earthen wall and can be used for transporting soldiers and military equipment.

Also called stop-log sluice. A temporary dam that stops the inundation water when beams are stacked up in its recesses.

Water purification system that improves the quality of drinking water by extracting iron.

Earthen elevation surrounding a defensive structure, featuring a breastwork.

A (wooden) shed where artillery and military engineering equipment were stored.

The part of a terrain that can be fired at.

Long-range flanking fire: fire support for the secondary forts. Short-range flanking fire: fire that covers the surroundings of the defensive structure itself.

Known in Dutch as ‘Vestingwet’. The act of the 18th of April 1874 that stipulated which forts would become part of the Dutch national defence system.

The side of a defensive structure that is facing away from the enemy.

In the Defence Line forts this is a casemate giving short-range and long-range flanking fire.

Undercarriage for a cannon or other heavy firearm.

Shell that is filled with highly explosive material.

The flooding of land to keep the enemy at bay.

Also called inlet sluice. A sluice that is constructed with the aim of letting water into a certain area.

An independent system of connected defensive structures.

Artillery that gives frontal fire over large distances, directly aimed at enemy positions.

A simple (temporary) defensive structure manned by a small number of soldiers.

An underground connecting passageway that is shellproof.

Known in Dutch as ‘Kringenwet’. Act of January 1853 that stipulates restrictions with regard to the construction of buildings in the vicinity of defensive structures, the so-called forbidden zones (‘kringen’), in order to guarantee a free field of fire.

A chart that is installed next to the gun port to give the operators of the artillery insight into the distances of targets and the corresponding firing angles.

A place of last refuge for the defenders of a fort, which can be defended independently.

A turret that is lifted up to give fire and is retracted and thus made almost invisible once the firing has stopped.

Position that provides shelter to retreating troops.

Battery that is situated in close proximity to a fort and performs some of the tasks that have been assigned to that fort.

The ability of a building to withstand gunfire thanks to brickwork, concrete or a bottom layer.

A shellproof depot for storing artillery and other essential military equipment.

A fort’s courtyard.


A turnable armoured artillery position.