58th (2/1st London) Division

The 58th (2/1st London) Division was an infantry division of the British Army, which was active in World War I and recreated during World War II as an imaginary 'deception' formation.

World War I
In late August 1914 the War Office issued instructions for all formations of the Territorial Force to form reserve units. The men who had agreed to serve overseas were separated from the rest. Those left as 'home service only' were formed into 'second line' units, to create this reserve. In the London area, the 1st London Division became the first-line formation, while the second-line formation was given the designation 2/1st London Division. When many of the 'first line' units of the senior 56th (1st London) Division were sent overseas, that Division was temporarily disbanded and the rest of its units joined the 'second line' in the 2/1st London Division. In August 1915, the number 58 was allocated to the 2/1st London Division.

World War II
The division was 'reformed' as a 'phantom division' created as part of 'Operation Fortitude North' as a replacement for the British 3rd Infantry Division which was going south to take part in a D-Day rehearsal. Unlike other 'phantom divisions' the 58ths number was chosen on the basis of Ultra reports that showed the Germans believed a 58th Infantry Division existed in the vicinity of Windsor.

As part of the British Fourth Army's, II Corps, the division took the role of a mountain trained assault formation in 'Fortitude North' (HQ: Aberlour) and the role of follow up unit in 'Fortitude South' (HQ: Gravesend). It was disposed of by announcing that the division had moved to Hertfordshire and been disbanded in April 1945.,

The formation's insignia, a stags face full on a black square was chosen to support the divisions fictional back-story, that it had been formed in the Scottish Highlands around cadres from combat experienced Highland regiments.,

Imaginary formations assigned to the division included the 173rd Infantry Brigade, 174th Infantry Brigade, 175th Infantry Brigade, and support units.