The Prime Minister of Greece, Ioannis Metaxas, suspended the parliament and the Constitution and establishes the Metaxas Regime, which is an authoritarian regime, also known as the 4th of August Regime. The Metaxas Regime was ruled obviously by Ioannis Metaxas until 1941.
The government of the new regime was anti-communist, but the regime took inspiration from Fascist Italy. In order to maintain the good international relations, the Kingdom of Greece never developed a full fascist regime. Despite the fact that it was an authoritarian regime, Greece maintained close relations with Britain and France, rather than the Axis Powers.
However, the 4th of August Regime lasted until 1941. Ioannis Metaxas died on January 1941 from serious health problems and he didn’t see his country invaded by the Germans. The German invasion of Greece occurred in April 1941 and they forced the Greek government to go in exile in the Middle East.
The Metaxas Regime lasted for less than 5 years.