Soufflenheim

Operation Royal Marine was a military operation in May 1940 of the Second World War, during the Battle of France (10 May – 25 June 1940). The British floated fluvial mines down rivers which flowed into Germany from France. The plan was to destroy German bridges, barges and other water transport. After several postponements insisted on by the French government, fearful of German retaliation, the operation began on 10 May 1940, when the German offensive in the west began. The mines caused some damage and delay to German river traffic on the Rhine from Karlsruhe to Koblenz and damaged bridges and protective barriers. Part of the plan was for Royal Air Force (RAF) bombers to drop the mines into rivers and canals on moonlit nights but this had hardly begun when the campaign ended. The success of the plot was nullified by the Allied defeat and the Franco-German Armistice of 22 June 1940.

Sessenheim (French pronunciation: [sɛsənaim] ; Alsatian: Sähsem) is a commune in the Bas-Rhin department in Grand Est in northeastern France.

Schirrhoffen (French pronunciation: [ʃiʁofœn]; German: Schirrhofen) is a commune in the Bas-Rhin department in Grand Est in north-eastern France.

Rountzenheim (French pronunciation: [ʁuntsənaim]; German: Runzenheim; Alsatian: Runzenem) is a former commune in the Bas-Rhin department in Grand Est in north-eastern France. On 1 January 2019, it was merged into the new commune Rountzenheim-Auenheim.

Rountzenheim-Auenheim (French pronunciation: [ʁuntsənaim auənaim]) is a commune in the Bas-Rhin department in Grand Est in north-eastern France. It was established on 1 January 2019 by merger of the former communes of Rountzenheim (the seat) and Auenheim.

The Casemate de Rountzenheim Nord is a casemate of interval infantry of the Maginot Line. The casemate is in the town of Rœschwoog in France, behind the camping site, in the north of the railway.

See Fortified Sector of Haguenau for a broader discussion of the Haguenau sector of the Maginot Line.The Casemate de Rountzenheim Sud is an interval infantry casemate of the Maginot Line. The casemate is in the town of Rœschwoog in France, behind the campsite, to the south of the railway.

Auenheim (French pronunciation: [auənaim]; Alsatian: Auenem) is a former commune in the Bas-Rhin department in the Grand Est region of north-eastern France. On 1 January 2019, it was merged into the new commune Rountzenheim-Auenheim.

Stattmatten (French pronunciation: [ʃtatmatən]) is a commune in the Bas-Rhin department in Grand Est in north-eastern France.

Schirrhein (French pronunciation: [ʃiʁain] ) is a commune in the Bas-Rhin department in Grand Est in northeastern France.

Koenigsbruck Abbey otherwise Königsbrück Abbey (French: Abbaye de Koenigsbruck; German: Kloster Königsbrück) was a Cistercian nunnery in the Forest of Haguenau, near Leutenheim, Alsace, Bas-Rhin, France, on the River Sauer.

Leutenheim is a commune in the Bas-Rhin department in Grand Est in north-eastern France. It lies 20 kilometres (12 mi) east of Haguenau and a short distance west of the Rhine, which here defines the frontier between France and Germany.