4th Battalion, CEF was organized at Valcartier under Camp Order 241 of 2 September 1914 and was composed of recruits from Military District 2 (Aurora

Aurora, Ontario

Aurora is an affluent town in York Region, approximately 20 km north of Toronto. It is partially situated on the Oak Ridges Moraine, and is a part of the Greater Toronto Area and Golden Horseshoe of Southern Ontario.Many Aurora residents commute to Toronto and surrounding communities.In the...

, Brampton

Brampton

Brampton is the third-largest city in the Greater Toronto Area of Ontario, Canada.Brampton may also refer to:- Canada :* Brampton, a city in Ontario** Brampton GO Station, a station in the GO Transit network located in the city- United Kingdom :...

, Brantford, Hamilton

Hamilton, Ontario

Hamilton is a port city in the Canadian province of Ontario. Conceived by George Hamilton when he purchased the Durand farm shortly after the War of 1812, Hamilton has become the centre of a densely populated and industrialized region at the west end of Lake Ontario known as the Golden Horseshoe...

 and Niagara Falls

Niagara Falls

The Niagara Falls, located on the Niagara River draining Lake Erie into Lake Ontario, is the collective name for the Horseshoe Falls and the adjacent American Falls along with the comparatively small Bridal Veil Falls, which combined form the highest flow rate of any waterfalls in the world and has...

. The battalion was commanded by Lieutenant-Colonel W.S. Buell who was replaced within days by Lieutenant-Colonel R.H. Labatt.

The battalion embarked at Quebec

Quebec

Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....

 on 23 September 1914 aboard TYROLIA, disembarking in England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 on 14 October 1914. Its strength was 44 officers and 1121 other ranks. The battalion disembarked in France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 on 11 February 1915, becoming part of the 1st Division, 1st Canadian Infantry Brigade. It was later reinforced by the 3rd Canadian Reserve Battalion. The battalion returned to England on 23 March 1919, disembarked in Canada on 21 April 1919, was demobilized at Toronto

Toronto

Toronto is the provincial capital of Ontario and the largest city in Canada. It is located in Southern Ontario on the northwestern shore of Lake Ontario. A relatively modern city, Toronto's history dates back to the late-18th century, when its land was first purchased by the British monarchy from...

 on 23 April 1919, and was disbanded by General Order

General order

In militaries, a general order is a published directive, originated by a commander, and binding upon all personnel under his command, the purpose of which is to enforce a policy or procedure unique to his unit's situation which is not otherwise addressed in applicable service regulations, military...

 149 of 15 September 1920.

It was involved in the following battles: Ypres 1915

Second Battle of Ypres

The Second Battle of Ypres was the first time Germany used poison gas on a large scale on the Western Front in the First World War and the first time a former colonial force pushed back a major European power on European soil, which occurred in the battle of St...

, 1917; Gravenstafel; St. Julien; Festubert 1915

Battle of Festubert

The Battle of Festubert was an attack by the British army in the Artois region of France on the western front during World War I. It began on May 15, 1915 and continued until May 25.-Context:...

; Mount Sorrel; Somme 1916; Pozières

Battle of Pozières

The Battle of Pozières was a two week struggle for the French village of Pozières and the ridge on which it stands, during the middle stages of the 1916 Battle of the Somme. Though British divisions were involved in most phases of the fighting, Pozières is primarily remembered as an Australian battle...

; Flers-Courcelette; Ancre Heights; Arras 1917

Battle of Arras

The name Battle of Arras refers to a number of battles which took place near the town of Arras in Artois, France:*Battle of Arras , a clash between the French and the Spanish...

, 1918; Vimy 1917

Battle of Vimy Ridge

The Battle of Vimy Ridge was a military engagement fought primarily as 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 Canadian Corps, of four divisions, against three divisions of the German Sixth Army...

; Arleux; Scarpe 1917

Battle of the Scarpe

The Battle of the Scarpe refers to a number of battles fought on the Western Front during World War I in the Nord-Pas-de-Calais region of France:...

, 1918; Hill 70; Passchendaele; Amiens

Battle of Amiens

The Battle of Amiens , which began on 8 August 1918, was the opening phase of the Allied offensive later known as the Hundred Days Offensive that ultimately led to the end of the First World War...

; Drocourt-Quéant

Drocourt-Quéant

The Drocourt-Quéant Line was a set of mutually supporting defensive lines constructed by Germany between the French cities of Drocourt and Quéant during World War I...

; Hindenburg Line

Hindenburg Line

The Hindenburg Line was a vast system of defences in northeastern France during World War I. It was constructed by the Germans during the winter of 1916–17. The line stretched from Lens to beyond Verdun...

; Canal du Nord; Pursuit to Mons.

The 4th Battalion is perpetuated by The Royal Hamilton Light Infantry (Wentworth Regiment)

The Royal Hamilton Light Infantry (Wentworth Regiment)

The Royal Hamilton Light Infantry is a Primary Reserve unit of the Canadian Forces based at John W. Foote VC Armouries in Hamilton, Ontario....

.