Characteristics of the CKM Squadron
The heavy machine‑gun squadron was created, as mentioned earlier, from the 3rd squadron of the support‑weapons battalion of the 1st Reconnaissance Regiment¹. This choice was not due to any particular suitability for this type of weapon, nor because it had the smallest manpower, but simply because of the order in which the units arrived.
Here is how it happened: each squadron — except for the 4th, which was transferred to the 10th Dragoon Regiment — formed one squadron within the support‑weapons battalion. The commanders of the 1st and 2nd squadrons were given the privilege of choosing the future specialization of their units. Thus:
- the 1st squadron chose anti‑aircraft defense,
- the 2nd chose mortars,
- and the 3rd, arriving last, had no option left but the heavy machine guns.
It appears that the decisive factor in these choices was whether the commander of a given squadron had a personal vehicle at his disposal. Since the commander of the heavy machine‑gun squadron did not have a car (as specified by the table of organization), no one wanted to take on that specialization. The last choice therefore naturally fell to the 3rd squadron, which was third in line.
As we shall see later the third squadron performed very well.

Kazimierz Duda - Chronicles of War - 1941 - Page 7