Question: What effort was the Canadian military known for in the country where the performer of Yellow Fields was a citizen?

full_context: Document 1: Endless Days (album): Endless Days is an album by German double bassist and composer Eberhard Weber recorded in Norway in 2000 and released on the ECM label.
Document 2: Battle of Ortona: On 28 December, after eight days of fighting, the depleted German troops finally withdrew from the town. The Canadians suffered 1,375 dead during the Moro River battles of which Ortona was a part. This represented almost a quarter of all Canadians killed during the entire Italian Campaign.
Document 3: Battle of Vimy Ridge: The Battle of Vimy Ridge was part of the Battle of Arras, in the Nord - Pas - de-Calais region of France, during the First World War. The main combatants were the four divisions of the Canadian Corps in the First Army, against three divisions of the German 6th Army. The battle took place from 9 to 12 April 1917 at the beginning of the Battle of Arras, the first attack of the Nivelle Offensive, which was intended to attract German reserves from the French, before their attempt at a decisive offensive on the Aisne and the Chemin des Dames ridge further south.
Document 4: Yellow Fields: Yellow Fields is an album by German double bassist and composer Eberhard Weber recorded in 1975 and released on the ECM label.
Document 5: The Colours of Chloë: The Colours of Chloë is an album by German double bassist and composer Eberhard Weber recorded in 1973 and released on the ECM label.
Document 6: Canadian Armed Forces: Since 1947, Canadian military units have participated in more than 200 operations worldwide, and completed 72 international operations. Canadian soldiers, sailors, and aviators came to be considered world-class professionals through conspicuous service during these conflicts and the country's integral participation in NATO during the Cold War, First Gulf War, Kosovo War, and in United Nations Peacekeeping operations, such as the Suez Crisis, Golan Heights, Cyprus, Croatia, Bosnia, Afghanistan, and Libya. Canada maintained an aircraft carrier from 1957 to 1970 during the Cold War, which never saw combat but participated in patrols during the Cuban Missile Crisis.
Document 7: The Following Morning: The Following Morning is an album by German double bassist and composer Eberhard Weber recorded in 1976 and released on the ECM label.
Document 8: Eberhard Weber: Eberhard Weber (born 22 January 1940 in Stuttgart) is a German double bassist and composer. As a bass player, he is known for his highly distinctive tone and phrasing. Weber's compositions blend chamber jazz, European classical music, minimalism and ambient music, and are regarded as characteristic examples of the ECM Records sound.
Document 9: Résumé (Eberhard Weber album): Résumé is a live album by German double bassist and composer Eberhard Weber recorded at various locations between 1990 and 2007 and released on the ECM label.
Document 10: Canadian Armed Forces: Battles which are particularly notable to the Canadian military include the Battle of Vimy Ridge, the Dieppe Raid, the Battle of Ortona, the Battle of Passchendaele, the Normandy Landings, the Battle for Caen, the Battle of the Scheldt, the Battle of Britain, the Battle of the Atlantic, the strategic bombing of German cities, and more recently the Battle of Medak Pocket, in Croatia.
Document 11: Battle of Vimy Ridge: Battle of Vimy Ridge Part of the Battle of Arras along the Western Front of the First World War The Battle of Vimy Ridge, a painting by Richard Jack. Canadian War Museum Date 9 -- 12 April 1917 Location Vimy, Pas - de-Calais, France 50 ° 22 ′ 44 ''N 2 ° 46 ′ 26'' E ﻿ / ﻿ 50.379 ° N 2.774 ° E ﻿ / 50.379; 2.774 Coordinates: 50 ° 22 ′ 44 ''N 2 ° 46 ′ 26'' E ﻿ / ﻿ 50.379 ° N 2.774 ° E ﻿ / 50.379; 2.774 Result Entente victory Belligerents Canada United Kingdom German Empire Commanders and leaders Julian Byng Ludwig von Falkenhausen Karl von Fasbender Georg Karl Wichura Strength 4 Canadian divisions and 1 British division totalling 170,000 men 3 divisions totalling 30,000 -- 45,000 men Casualties and losses 3,598 dead, 7,004 wounded unknown dead or wounded, 4,000 captured
Document 12: Chorus (Eberhard Weber album): Chorus is an album by German double bassist and composer Eberhard Weber featuring Jan Garbarek and Ralf-R. Hübner recorded in 1984 and released on the ECM label.
Document 13: Later That Evening: Later That Evening is an album by German double bassist and composer Eberhard Weber recorded in 1982 and released on the ECM label.
Document 14: Little Movements: Little Movements is an album by German double bassist and composer Eberhard Weber recorded in 1980 and released on the ECM label.
Document 15: Stages of a Long Journey: Stages of a Long Journey is a live album by German double bassist and composer Eberhard Weber recorded in Germany in 2005 and released on the ECM label.
ground_truth: the strategic bombing of German cities
sub_queries: Yellow Fields >> performer Answer: Eberhard Weber
Eberhard Weber >> country of citizenship Answer: Germany
What effort was the Canadian Military known for in Germany ? Answer: the strategic bombing of German cities