Sailly-sur-la-Lys

Captain George Edward Henry McElroy MC & Two Bars, DFC & Bar (14 May 1893 – 31 July 1918) was a leading Irish fighter pilot of the Royal Flying Corps and Royal Air Force during World War I. He was credited with 47 aerial victories.

The Canton of Laventie was one of the 14 cantons of the arrondissement of Béthune, in the Pas-de-Calais department, in northern France. It had 18,792 inhabitants in 2012. It was disbanded following the French canton reorganisation which came into effect in March 2015.

Laventie (French pronunciation: ​[lavɑ̃ti]; West Flemish: Wentie) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.

Steenwerck (French pronunciation: ​[stɛ̃vɛʁk]; Dutch: Steenwerk) is a commune, in French Flanders, in the Nord department in northern France. It is located about 25 km (16 mi) north of Lille and in 2013 had a population of 3519. People from Steenwerck are known as Steenwerckois. It is home to Steenwerck's 100 km à pied race event, which mainly features a 100 km (62 mi) marathon, although most local residents prefer to merely walk one lap (roughly 22 kilometres (14 mi)). Steenwerck also has its own festival giant, as is the tradition in the Nord Department, which is named Totor and is one of the tallest, measuring 5.70 m (18.7 ft). Other places of interest include the Museum of Rural Life as well as three Commonwealth war cemeteries, and a German war cemetery, of the First World War.

The Rue-du-Bois Military Cemetery is a World War I cemetery located in the commune of Fleurbaix, in the Pas-de-Calais departement of France, about 3 kilometres (1.9 mi) southwest of the village of Fleurbaix on the D171 road (rue Louis Bouquet), just before the hamlet of Pétillon. Of the 845 graves, 395 are of unknown soldiers.

Fleurbaix (French pronunciation: ​[flœʁbɛ]; West Flemish: Vloerbeek) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.

The Le Trou Aid Post Cemetery is a World War I cemetery located in the commune of Fleurbaix, in the Pas-de-Calais departement of France, about 3 kilometres (1.9 mi) south of the village of Fleurbaix on the D175 road (rue de Pétillon).British soldiers of the 19th Infantry Brigade made the earliest burials at the site in October 1914 during the First Battle of Ypres. By the end of the war, the cemetery contained 123 graves. This number nearly tripled after a postwar consolidation of war burial sites, when Le Trou Aid Post was expanded by the architect Sir Herbert Baker.Described as one of Baker's most sentimental works, the rural site is surrounded by a narrow moat and sheltered by a grove of weeping willows. Visitors approach over a footbridge and enter through a delicate cottage-style gateway.The cemetery contains more than 350 graves, and over two hundred are unidentified. The dead represent the battlefields of Ypres, Le Maisnil (October 1914), Aubers Ridge (May 1915), Loos (September–October 1915), and Fromelles (July 1916).

The V.C. Corner Australian Cemetery and Memorial is a Commonwealth War Graves Commission World War I cemetery and memorial. The site is located in the commune of Fromelles, in the Nord departement of France, about 2 kilometres (1.2 mi) northwest of the village of Fromelles on the D22C road (rue Delval).

Erquinghem-Lys (French pronunciation: ​[ɛʁkɛ̃ɡɛm lis]) (Erkegem an de Leie in West Flemish) is a commune situated in the Nord department in northern France.It is part of the Métropole Européenne de Lille. Erquinghem is one of a series of villages on the river Lys established by the Viking Rikiwulf in 880 AD at the time of the invasion led by Godfrid, Duke of Frisia: Racquinghem, Reclinghem, Rekkem and Rijkegem (the latter two now in West Flanders - Belgium). Erquinghem-Lys has been twinned with Skipton, North Yorkshire, England since 24 October 2009.

Nieppe (French pronunciation: ​[njɛp]; Dutch: Niepkerke) is a commune in the Nord department in northern France. It is in the Lys Plain and a portion of it is in the Lys Valley (Leiedal in Dutch).

Aubers (French pronunciation: ​[obɛʁ]) is a commune in the Nord department in northern France. It is 15 km (9.3 mi) west of Lille. The parish church is dedicated to St Vaast. It was the site of a major World War I battle, the Battle of Aubers, during 1915. Aubers is twinned with the English town of Wadhurst.

Sergeant Frank Potter (1891 – 11 September 1917) was a British World War I observer who became a flying ace, being credited with seven aerial victories.