In ceding the border areas to Germany, Poland and Hungary, Czechoslovakia lost the majority of its border fortifications and became less defensible against any invading force. On 13 March 1938, Adolf Hitler and Joachim von Ribbentrop informed Jozef Tiso about the irreversible decision to occupy Bohemia and Moravia in the coming hours, while Slovakia was to decide on its fate itself. After the proclamation of the Slovak Republic shortly after the end of Nazi ultimatum, Hitler invited the Czech president Emil Hácha declaring that the German army was about to invade the Czech lands and the resistance would be suppressed by Nazis by all means.