A total of 434 were built; of these, the Germans seized 244 when they occupied Bohemia-Moravia in March 1939 and the Slovaks acquired 52 when they declared independence from Czechoslovakia at the same time.

The hull machine gun was between the driver and radio operator in a ball mount capable of 30° of traverse, 25° of elevation and depressing up to 10°.

The commander had four episcopes in his cupola and a monocular mirror, 1.3 × 30° periscope which he could extend, once he had removed its armoured cover in his hatch, to give vision while "buttoned-up".

The transmission, brakes and steering were mechanically assisted with compressed air, reducing driver fatigue.

34 (German designation "KwK 34(t)") gun with a pepperpot muzzle brake and a prominent armoured recoil cylinder above the barrel.

[8] Kliment and Francev quote penetration of a vertical plate 45 millimetres (1.8 in) thick at 500 metres (550 yd).

The rest of the armour was as follows:[11] The Czechoslovak Army formulated a requirement in the II-a category of light cavalry tanks by the end of 1934.

Českomoravská Kolben-Daněk proposed an improved version of its P-II light tank already in service as the LT vz.

34, but Škoda offered a new design that used the pneumatic system and engine earlier proved by its unsuccessful SU or S-II light tank prototype.

[15] The total order for 298 tanks was split equally by Škoda Works and ČKD according to their cartel agreement.

Britain's Alvis-Straussler negotiated for a production license from September 1938 until March 1939 when the Nazi occupation made an agreement impossible.

Each regiment was supposed to detach three-tank platoons to support the infantry divisions and border areas in times of crisis.

They were assigned to the Panzer Battalion (Panzerabteilung) 65 (39) of the 1st Light (leichte) Division and the independent Panzer-Regiment 11 (81) where they participated in the invasion of Poland.

35 replacements were issued on 3 June in preparation for Fall Rot, the attack on the remnants of the French Army that began the following day.

To be practical, maybe the armored hulls are still useable.Due to the cessation of production of these tanks, and the absence of spare parts being made, it was decided that the summer campaign of 1941 was to be their last.

This weakness, in addition to their thin armour and inadequate firepower, resulted in the 6th Panzer Division being reequipped with German tanks on its withdrawal from Russia in April 1942.

They suffered from numerous teething problems and the Romanians put a hold on production until these issues were resolved.

The constantly changing Romanian demands did not help the situation, but they refused to accept any vehicles until trials were conducted in Romania.

Three R-2s were shipped to Romania on 12 July 1938 for the trials, but Skoda knew which one would be chosen and prepared the vehicle well and it passed all tests.

After disassembly and checks of the trial tank were completed, the Romanian commission approved the design on 23 August.

Shipments to Romania began on 1 September with 27 shipped before the Munich Crisis forced the Czechs to hold all remaining tanks in case they were needed.

By the eve of the Soviet Stalingrad Counter-offensive on 19 November the division could only muster 84 serviceable R-2s with as many as 37 unserviceable tanks stationed in the rear.

[39] The division was on the outer edges of the Stalingrad Pocket, but managed to break through the western wing of the encirclement, although 77 R-2s were lost in the process.

[41] A company of R-2s was sent to Transnistria with the ad-hoc Cantemir Mixed Tank Group on 24 February 1944, but it did not see combat before being withdrawn on 28 March 1944.

[42] A company of R-2s was assigned to the Popescu Armoured Detachment after King Michael's Coup and Romanian's defection from the Axis at the end of August 1944.

The Detachment was tasked with preventing the German units stationed around Ploiești from breaking out to the north and finding refuge in Hungary.

When Slovakia joined the German invasion of the Soviet Union it sent a Mobile Group that included thirty LT vz.

This was due to a conspiracy among the Slovak tankers that the tanks would be needed to overthrow the regime at some point and could not be wasted in combat against the Soviets.

[53] They were supposedly relegated to training duties once the Germans began to deliver the Panzerkampfwagen IV medium tanks in 1944, but apparently remained in service into the Fifties.

[20] But Kliment and Francev claim that the T-11s participated in the fighting in Yugoslavia and ended the war south of Vienna as part of the 1st Tank Brigade.