Major FJ Hamilton of Port Credit was made temporary lieutenant-colonel, and oversaw an intensive recruiting campaign throughout the winter.

The battalion was split up into small detachments scattered through the recruiting area until June 5, when it was mobilized at Orangeville, remaining there under canvas until July 2, when it was moved to Camp Borden.

On October 29 the battalion commenced a route march from Camp Borden to Hamilton, a distance of about 150 miles (240 km), to take up winter quarters in the Westinghouse Barracks.

In March, when 490 men had been raised, one newspaper remarked: One of the officers closely connected with recruiting declares that the sons of farmers in Peel are not doing their fair share, as he knows fully 150 who can be spared from the farms to work in munitions plants, but do not show any disposition to enlist.

[citation needed] The unit also issued a 28-page illustrated pamphlet, 'setting forth the work, the experiences, the adventures and aspirations of the Battalion', sold at ten cents a copy by the officers and through the schools.

On Sunday, November 5, 1922, a memorial window was dedicated in the Church of the Epiphany on Queen Street, West Toronto to the 3200 all ranks who had passed through the Peel Regiment from 1914 to 1918, and the five hundred who had given their lives.

The training exercises now went beyond the drill and rifle practice of earlier days, and during the inter-war years involved attack and defensive positions, inter-arm co-operation (the artillery came out to the farmlands west of Brampton and demonstrated a smoke screen), ground to air signalling, and even aerial bombardment.

The negotiations went slowly because the 2nd Battalion of the Lancashire Fusiliers were serving in India, but eventually they signified their favour and in November 1929 the unit was informed that the king approved of the alliance.

While guards were being mounted on the armouries in Brampton, Georgetown, Port Credit, Milton, Oakville, Acton, Orangeville and Shelburne, the Lorne Scots set about forming the headquarters and two companies of the Depot, with two provost sections.

[citation needed] In mid-December it moved to the Automotive Building on the Toronto Exhibition Grounds for a month, before setting out to embark from Halifax for Britain.

Planes droned continuously overhead; bombs screeched on their way to the targets, and exploded as they landed; guns roared; and workers shouted hoarsely as they tried to communicate with each other.

Captain D.C. Heggie, RCAMC, the depot's Medical Officer, spent the night of 3/4 May under fire amid bombs and falling masonry, binding up wounds and relieving suffering.

He forced his way into demolished buildings, directed rescue operations and at times crawled into cellars to administer hypodermics to trapped and wounded civilians.

6 Defence Platoon (6th Canadian Infantry Brigade) were brought by LST (Landing Ship Tank), touching down on White Beach at 16:05 on 19 August 1942.

Corporal Larry Guator, with Privates McDougall and Stephen Prus, were to act as bodyguard for Brigadier Leth (4th Canadian Infantry Brigade).

It was a serious business: much time was spent training (there were sessions on aircraft recognition, and on drills in case of gas attack) and on the ranges; once a sergeant was accidentally wounded by a sten gun; and on one occasion a soldier was court-martialed for sleeping on his post as a sentry.

They were often congratulated by General McNaughton for their deportment on the March Past after the monthly church parade (services were voluntary on the other Sundays, but a soldier had to inform the Orderly Sergeant if he wanted to attend).

The men immediately began taking part in the constant patrolling that sought out information from the enemy—the Lornes augmenting the more experienced Seaforths.

Waiting for the shell fire to cease, 'he boldly uncorked the bottle and repeatedly assured himself that the quality of the rum was up to the standard required for his men.'

In July, a Lorne Scot concentration was held, then Maj Drennan admitted to 5th Cdn CGS; he was found to have serious injury to his spinal column, and on 3 August Major S. Beatty assumed command.

During the summer, the POW cage was only lightly used, mostly for Italian refugees; during the fierce fighting of September, this changed, the busiest day being the 13th (the date of the capture of Coriano Ridge on the Rimini Line), when two German officers and 130 other ranks were admitted.

6 Defence and Employment Platoon for the 6th Canadian Division was authorized in March 1942, and recruited in Brampton, Georgetown, Oakville, Orangeville and Port Credit.

Trained personnel were posted to the new brigade defence platoons, and in September one officer and 28 ORs moved to Work Point barracks in Victoria.

The decision sparked about a demonstration by about 200–300 NRMA men in Prince George,[clarification needed] although none from the Division's Defence and Employment Platoon took part.

This was followed by an upsurge of interest and prowess in marksmanship in the unit which immediately began to dominate competition shooting at all levels from local to national.

This domination has continued to the present time with the unit being represented at various world Championships, Olympics, Pan-American Games and the Bisley Competition in England.

In the 1960s, the Lancashire Fusiliers, the allied regiment in England since 9 May 1929, suffered amalgamation and in the process bestowed its revered primrose hackle on the Lorne Scots for custodianship.

A number of troops participated in the clean up of activities during the 1998 Ice Storm in eastern Ontario, and Sovereignty Operation Nanook in the Canadian Arctic throughout 2007–2010.

RHQ and soldiers of the regiment would form the basis for a battle group under the command of the 110th Maneuver Enhancement Brigade (US Army) in South Dakota as part of the National Guard Exercise Golden Coyote.

The regiment more recently has contributed soldiers to the International military intervention against ISIL and missions to train local forces in Jordan and Ukraine.