Fort Anne is a historic fort protecting the harbour of Annapolis Royal, Nova Scotia. It was built by Scottish settlers in August 1629 as Charles Fort.^[1] For the first 120 years of the fort's service period, the settlement of Port Royal, later Annapolis Royal, was the capital of the New France colony of Acadia and British North America colony of Nova Scotia. In 1917, Fort Anne became the first National Historic Site of Canada.^[2] Although no longer in active service, it is the oldest extant fort in Canada. Fort Anne has provided more defensive service than any other fort in North America, having been attacked and blockaded at least 19 times over a service period of 225 years, from the Acadian Civil War through to the American Revolutionary War. The fort also contains the oldest military building in Canada and the oldest building administered by Parks Canada, the 1708 powder magazine.

The importance of Port Royal as a settlement site was first recognised by Pierre Dugua, Lieutenant General of New France, in 1604. After the nearby fortified habitation he constructed was destroyed by a raid from Virginia in 1613, a new fort was built on the current site by Scottish settlers in 1629 under the leadership of Sir William Alexander. The new construction was called Charles Fort after Charles I, King of Scotland. The fort was acquired by the French in 1632 and would later pass between the French, English and British until the area was finally ceded to Great Britain in 1713 at the end of Queen Anne's War. The last assault on the fort was from American privateers in 1781 during the American Revolutionary War. Although the possibility existed for attacks during the War of 1812, none occurred.

Fort Anne was acquired by the Dominion Parks Branch, the predecessor of Parks Canada, in 1917 and transitioned to the new designation of National Historic Site of Canada in 1920.

The grounds are open year round. Parks Canada operates a museum in the 1797 Officer's Quarters daily from mid-May until mid-October.

Numerous events take place in and around the fort during the year, normally culminating on Natal Day, the first Monday in August.

The Annapolis Basin was part of a larger areas known as "Kespukwitk" meaning "Land's End" in the Mi'kmaq language and covered the southern peninsula of modern Nova Scotia.^[3] Allains Creek, was the site of a traditional Mi'kmaq campsite as it was on a key canoe and portage route across southern Nova Scotia.^[4] Nonetheless, Pierre Dugua chose a site on the opposite side of the Annapolis Basin to build his habitation in 1605. When the habitation was destroyed in 1613, it was not rebuilt despite the continued settlement of the area by the French.

Although the Scottish expedition of 1629 was aware of the French fortified habitation at Port Royal, the site that was chosen for a new fort was at the nearby confluence of the Annapolis River and Allains Creek. This site received the natural protection of the rivers and was adjacent to an agricultural area that was previously developed by the French. Construction of the new fort began on 1 August 1629 and was completed within a few weeks. According to Richard Guthry, a witness of the time, "The first of August...was the foundation of our fort laid."^[1] Although the fort would be redeveloped several times, Charles Fort, through its successor Fort Anne, is arguably the oldest extant European construction in Canada.

Guthry further describes,

"The platt of the fort wes drawen by Captane Ogilvie in forme of a pentagonon, with many horne works good both for offence and defence...befor the latter end of the month the fort with the infinit pains and alacrity both of sea and land men was finished, eight pieces of ordinance planted, four demi culvering, and four minion, out magasene built and stored, the Generals house formed."^[1]

In 1632, Acadia, along with Quebec and Cape Breton Island, reverted to French control due to the Treaty of Saint-Germain-en-Laye. As a result, Charles Fort was handed over to the French. A new earthwork fort was constructed to replace the Scottish fort by 1643.^[5] The fort would be attacked three times over the next 22 years. It repelled the first two attacks by fellow French settlers during the Acadian Civil War, but fell to the English in 1654.

The English period lasted 16 years, during which time the fort saw no major action. In 1667, Port Royal was returned to France as a result of the Treaty of Breda. Although under English rule, the population remained majority French.

The second French period lasted 43 years. During King William's War (1688–1697), the fort was attacked three times. It quickly succumbed to an attack by soldiers from New England in 1690, but was only briefly occupied. It was attacked two more times before the end of the war, but there was no territorial expansion by the English.

The fort was completely rebuilt starting in 1702 to a Vauban configuration which remains largely intact to this day. From a defensive perspective, the Vauban star shape and gently sloping walls soften the angle of impact from incoming fire. The low profile of the walls reduce the size of the target. The soft earth has more mass to withstand impacts as well as reduces the quantity of projectiles if impacts occur. From an offensive perspective, the star shape enables more cannons to fire, no matter the angle of attack.^[6] Due largely to revised fort configuration, when hostilities erupted during Queen Anne's War (1702-1713), the fort repelled three initial British attacks. However, It succumbed in 1710 to an overwhelming British force of 2,000 troops and 36 ships. The French made a minor attempt to retake the fort in 1711, but were unsuccessful.

British control of the fort lasted for 141 years. In 1713, as a result of the Treaty of Utrecht, a large portion of Acadia, including Port Royal, was officially ceded to Great Britain. The British had effectively been in control of the area since 1710. At this time, the town was renamed Annapolis Royal after Queen Anne. During Father Father Rale's War (1722–1725), the fort was unsuccessfully attacked twice by Mi'kmaq and Maliseet troops, although casualties occurred on both sides. The last major attempt to retake Fort Anne by the French was during King George's War (1744–1748). After 3 failed attempts to retake the fort during the war, the French launched a massive invasion fleet in 1746, the Duc d'Anville expedition, to retake both Port Royal and Louisbourg, which had fallen to the British in 1745. This operation also failed and was the last time the French attempted the Fort's recapture. During the American Revolutionary War (1775–1783), the fort was attacked twice by American privateers, although their interest lay in plunder rather than in conquest.

Although the possibility existed for attacks to occur on Fort Anne during the War of 1812 by American privateers, none occurred.

Upon the completion of the citadel at Halifax in 1854, the British Garrison at Fort Anne was permanently deployed to that location. Although the United Kingdom maintained ownership of Fort Anne until 1883, it no longer saw active service. Eventually, most of the fort's remaining buildings were destroyed or demolished until the Dominion Parks Branch, the predecessor of Parks Canada took interest in the site in 1917.

In 1917, Fort Anne was acquired by the Dominion Parks Branch, the predecessor of Parks Canada, and designated a national historic park, bearing the name Fort Anne National Park.^[7] Two years later, a new program of National Historic Sites was established and Fort Anne was designated a National Historic Site in 1920.^[8]

Fort Anne is sometimes referred to as Canada's "first National Historic Site" or the "first administered national historic site", because it was the first site acquired by the federal government for national historic purposes that has subsequently remained under Parks Canada administration.^[9]

• Remains of the Vauban-style French fort (1702–1708) with an underground powder magazine, a parade square well, a covert way well and earthworks
• Powder magazine (1708)
• Shoreline cribwork (1740s)
• Queen’s wharf (1740s)
• Dry-stone retaining wall (1760)
• British Officers’ quarters (built 1797–1799 and reconstructed 1935) now house the museum with exhibits about the fort's history and historic artifacts from the area. It was the former site of the Lieutenant Governor's house and chapel.
• Sally-port (1800s)
• Acadian cemetery
• British garrison cemetery

• Sir William Alexander (1629–1630)
• Sir George Home (1630–1632)
• John Doucett (1717–1726)
• Lawrence Armstrong
• Alexander Cosby
• Paul Mascarene
• Henry Daniel (military officer)
• John Handfield (1752–1755)

On 28 June 1985 Canada Post issued 'Fort Anne, N.S., circa 1763.' one of the 20 stamps in the "Forts Across Canada Series" (1983 & 1985). The stamps are perforated 12+1⁄2 x 13 mm and were printed by Ashton-Potter Limited based on the designs by Rolf P. Harder.^[10]

• Military history of Nova Scotia
• List of forts
• List of oldest buildings in Canada