Auxiliary Technical Battalions

Aux­il­iary Tech­ni­cal Bat­tal­ions – PTP – detach­ments of the Czechoslo­vak Army, which in 1950 – 1954 orga­nized the intern­ment and ​“re-edu­ca­tion” of so-called ​“polit­i­cal­ly unre­li­able” conscripts.