The coup was executed at 2:15 am on 27 March.
It was planned by a group of VVKJ officers in Zemun, and Royal Guard officers in nearby Belgrade.
The only senior officers involved were from the air force.
Under the supervision of the VVKJ deputy commander Borivoje Mirković, headquartered at the  VVKJ base at Zemun, officers assumed control of critical buildings and locations in the early hours of 27 March, including:
the Zemun VVKJ base (Colonel Dragutin Savić)
the bridges over the Sava between Zemun and Belgrade (Colonel Dragutin Dimić)
the City Administration, Police Directorate and the Belgrade radio station (Colonel Stjepan Burazović)
the ministries and headquarters of the General Staff (Major Živan Knežević)
the Royal Court (Colonel Stojan Zdravković)
the main post office in Belgrade (Lieutenant Colonel Miodrag Lozić)
the barracks of the Royal Guards and Automotive Command
An inspector of post, telegraph and telephone assisted Mirković by cutting off communications between Belgrade and the rest of the country.
Tanks and artillery were deployed on all the main streets of Belgrade, and by 2:00 pm all strategic locations were in the hands of troops loyal to the coup leaders.

At the time of the coup, Prince Paul was in Zagreb en route to a planned holiday in Brdo.
On the morning of 27 March, Deputy Prime Minister Maček was informed of the coup and met Prince Paul at Zagreb's railway station to discuss the situation.
A meeting was then held at the residence of the Ban of Croatia, Ivan Šubašić, which included Šubašić, Prince Paul, Maček and the army commander in Zagreb, August Marić.
Maček urged Prince Paul to oppose the putsch and Marić pledged the support of the Croatian units of the army.
Maček suggested that Prince Paul stay in Zagreb, with the possibility of mobilising army units in the Banovina of Croatia in his support.
Prince Paul declined this offer, at least partially because his wife, Princess Olga, and children remained in Belgrade.
Accompanied by Šubašić, he reached the capital by train that evening and was met by Simović, who took him to the war ministry where he and the other two regents relinquished power, immediately abolishing the regency.
Having already made arrangements with the British consul in Zagreb, Prince Paul and his family left that evening for Greece, after which they travelled to Kenya and then exile in South Africa.

On the morning of 27 March, the royal palace was surrounded and the coup's advocates issued a radio message that impersonated the voice of King Peter with a "proclamation to the people", calling on them to support the King.
Peter was surprised by the coup, and heard of his coming of age for the first time on the radio.
Pamphlets with the proclamation of the coup were subsequently dropped into cities from aircraft.
Demonstrations followed in Belgrade and other large Yugoslav cities that continued for the next few days, including in Cetinje, Podgorica, Split, Skopje and Kragujevac.
The crowds at these demonstrations shouted slogans in support of the United Kingdom, and also frequently used the slogan that had been used by demonstrators the day before the coup, "Better the war than the pact, better the grave than a slave".
Members of the Communist Party of Yugoslavia, which had been outlawed since 1920, also took part in pro-putsch rallies all over the country.
Churchill declared that "Yugoslavia has found its soul”, and he even considered that a Balkan front could be established with Turkish help.
The news resulted in Greek attempts to change their defence plans, and the Greeks also pressed the Yugoslavs to attack the Italians in Albania.
The Polish and Czechoslovakian governments-in-exile both praised the coup, and news of it was received in Greece with "wild enthusiasm".
According to the memoirs of the Serbian Orthodox Patriarch, Gavrilo V, the putsch was immediately welcomed by the senior clergy of the church, as the Holy Assembly of Bishops convened on 27 March in response to the coup.
Patriarch Gavrilo also spoke publicly in support of the King and the new regime over the radio.
The coup was executed at 2:15 am on 27 March. It was planned by a group of VVKJ officers in Zemun, and Royal Guard officers in nearby Belgrade. The only senior officers involved were from the air force. Under the supervision of the VVKJ deputy commander Borivoje Mirković, headquartered at the  VVKJ base at Zemun, officers assumed control of critical buildings and locations in the early hours of 27 March, including:
the Zemun VVKJ base (Colonel Dragutin Savić)
the bridges over the Sava between Zemun and Belgrade (Colonel Dragutin Dimić)
the City Administration, Police Directorate and the Belgrade radio station (Colonel Stjepan Burazović)
the ministries and headquarters of the General Staff (Major Živan Knežević)
the Royal Court (Colonel Stojan Zdravković)
the main post office in Belgrade (Lieutenant Colonel Miodrag Lozić)
the barracks of the Royal Guards and Automotive Command
An inspector of post, telegraph and telephone assisted Mirković by cutting off communications between Belgrade and the rest of the country. Tanks and artillery were deployed on all the main streets of Belgrade, and by 2:00 pm all strategic locations were in the hands of troops loyal to the coup leaders.
At the time of the coup, Prince Paul was in Zagreb en route to a planned holiday in Brdo. On the morning of 27 March, Deputy Prime Minister Maček was informed of the coup and met Prince Paul at Zagreb's railway station to discuss the situation. A meeting was then held at the residence of the Ban of Croatia, Ivan Šubašić, which included Šubašić, Prince Paul, Maček and the army commander in Zagreb, August Marić. Maček urged Prince Paul to oppose the putsch and Marić pledged the support of the Croatian units of the army. Maček suggested that Prince Paul stay in Zagreb, with the possibility of mobilising army units in the Banovina of Croatia in his support. Prince Paul declined this offer, at least partially because his wife, Princess Olga, and children remained in Belgrade. Accompanied by Šubašić, he reached the capital by train that evening and was met by Simović, who took him to the war ministry where he and the other two regents relinquished power, immediately abolishing the regency. Having already made arrangements with the British consul in Zagreb, Prince Paul and his family left that evening for Greece, after which they travelled to Kenya and then exile in South Africa.
On the morning of 27 March, the royal palace was surrounded and the coup's advocates issued a radio message that impersonated the voice of King Peter with a "proclamation to the people", calling on them to support the King. Peter was surprised by the coup, and heard of his coming of age for the first time on the radio. Pamphlets with the proclamation of the coup were subsequently dropped into cities from aircraft. Demonstrations followed in Belgrade and other large Yugoslav cities that continued for the next few days, including in Cetinje, Podgorica, Split, Skopje and Kragujevac. The crowds at these demonstrations shouted slogans in support of the United Kingdom, and also frequently used the slogan that had been used by demonstrators the day before the coup, "Better the war than the pact, better the grave than a slave". Members of the Communist Party of Yugoslavia, which had been outlawed since 1920, also took part in pro-putsch rallies all over the country. Churchill declared that "Yugoslavia has found its soul”, and he even considered that a Balkan front could be established with Turkish help. The news resulted in Greek attempts to change their defence plans, and the Greeks also pressed the Yugoslavs to attack the Italians in Albania. The Polish and Czechoslovakian governments-in-exile both praised the coup, and news of it was received in Greece with "wild enthusiasm". According to the memoirs of the Serbian Orthodox Patriarch, Gavrilo V, the putsch was immediately welcomed by the senior clergy of the church, as the Holy Assembly of Bishops convened on 27 March in response to the coup. Patriarch Gavrilo also spoke publicly in support of the King and the new regime over the radio.
Yugoslav coup d'état