[22] By 14 September, the uprising was partially suppressed due to declaration of martial law, deployment of the military and reinforcement of the State Defence Guard.

[24] Following the failed coup, the second phase of uprising began on 17 September with activities of Sudetendeutsches Freikorps,[25][26] a paramilitary organization of Sudeten Germans formed in Germany.

[29] In some cases, regular German units of Abwehr, SA and SS participated in combat, terrorist and sabotage actions.

[32] Mobile army units reinforced by LT-35 light tanks and armoured cars restored order in regions such as Cheb, Frýdlant, Šluknov, or Varnsdorf, resulting in a decline of insurgency activities.

[35] On 1 October, Freikorps issued an order to “eliminate fleeing leftists and Czechs.”[36] More than 200,000 people, mostly Czechs but also Jews and Sudeten German anti-fascists, fled from Sudetenland in fear of the Nazis.