selected
World War II: Operation Queen commenced with one of the heaviest Allied tactical bombings of the war, attacking German targets in the Rur valley.
Related Wikipedia articles
World War II
1939–1945 global conflict
World War II or the Second World War was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks and aircraft played major roles,…Source: Wikipedia (CC BY-SA)
Operation Queen
1944 operation during World War II
Operation Queen was an American operation during World War II on the Western Front at the German Siegfried Line.Source: Wikipedia (CC BY-SA)
Allies of World War II
Victorious countries of WWII
The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members were the "Big Four" – the United Kingdom, United States, Soviet Union, and China.Source: Wikipedia (CC BY-SA)
Roer
River in Germany and the Netherlands
The Roer or Rur is a major river that flows through portions of Belgium, Germany and the Netherlands. It is a right (eastern) tributary to the Meuse. About 90 percent of the river's course is in Germany.Source: Wikipedia (CC BY-SA)