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The 9th Infantry Brigade was a Regular Army infantry brigade of the British Army that saw active service during both World War I and World War II.
9th Infantry Brigade (United Kingdom) Wikipedia
During World War I, 9th Brigade's composition was as follows:1st Battalion, Northumberland Fusiliers
4th Battalion, Royal Fusiliers
1st Battalion, Lincolnshire Regiment (until November 1915)
1st Battalion, Royal Scots Fusiliers (until April 1916, then to 8th Brigade)
1/10th (Scottish) Battalion, King's (Liverpool Regiment) (from November 1914 to January 1916)
12th (Service) Battalion, West Yorkshire Regiment (from November 1915 to February 1918)
13th (Service) Battalion, King's (Liverpool Regiment) (joined from 8th Brigade in April 1916)
9th Brigade Machine Gun Company (formed in February 1916, joined the 3rd MG Battalion, Machine Gun Corps in March 1918)
9th Trench Mortar Battery (joined by May 1916)
The brigade served with the 3rd Division throughout the war, except for a brief a period in early 1915 when it exchanged places with the 85th Brigade of 28th Division.
The 9th Infantry Brigade together with 7th Infantry Brigade and 8th Infantry Brigade formed the 3rd Infantry Division. At the outbreak of World War II the division was commanded by Major-General Bernard Montgomery. With the 3rd Division the brigade was sent to France in October 1939, shortly after the outbreak of war, as part of the British Expeditionary Force, which evacuated from Dunkirk. After the evacuation, the Brigade spent four years training in the UK, in preparation for an eventual assault landing in Europe. The 3rd Division was the first British division to land at Sword Beach on D-Day and fought through the Battle of Normandy, the Netherlands and later the invasion of Germany. During the often intense fighting from Sword Beach to Bremen, the Division suffered 2,586 killed.
The brigade comprised:2nd Battalion, Lincolnshire Regiment
1st Battalion, King's Own Scottish Borderers
2nd Battalion, Royal Ulster Rifles