Tanks, drones and reconnaissance planes joined hundreds of Turkish soldiers on a night time raid into Isis-occupied Syria to evacuate the tomb of a revered Ottoman figure and rescue around 40 soldiers who had been guarding it.
Sweeping around 23 miles into the country they met no resistance as they reached the final resting place of Suleyman Shah, who lived from about 1178 to 1236 and was the grandfather of the founder of the Ottoman empire, Osman I. The Syrian government described the operation yesterday as an act of "flagrant aggression", adding that Turkey had informed its Istanbul consulate about the operation, but had not waited for Syria's agreement.
Suleyman's tomb was relocated to the Esmesi region of Syria, where a Turkish flag was planted, and the mausoleum that had housed it was destroyed to prevent its use by Isis.
The Turkish Prime Minister Ahmet Davutoglu said the operation was carried out "to protect our spiritual values and the safety of our armed forces personnel".
The 38 soldiers who had been guarding the tomb, made Turkish territory under a treaty signed with France in 1921, were also brought home. Normally, the detachment is rotated every six months but the last one had been trapped at the site for eight months by Isis fighters.
In March 2014, the group threatened to attack the site unless Turkish troops guarding the tomb were withdrawn in three days, but an attack did not take place. Its strict Salafi interpretation of Islam deems the veneration of relics idolatrous and it has destroyed several tombs and mosques in Syria.
Mr Davutoglu, who has repeatedly said that Turkey would retaliate against any attack on the tomb, called the operation to remove it "extremely successful", adding that it had not sought permission or assistance for the mission.
Instead, he said, it had informed allies in the coalition against Isis once the incursion began - the first by Turkish troops into Syria since the start of the civil war nearly four years ago.
Around 100 military vehicles, including 39 tanks, were involved along with 572 military personnel including special forces commandos. Fighter jets were on alert during the mission but did not need to be deployed, he explained.
No clashes took place during the operation although one soldier was killed in an accident, according to the Turkish military.
In its statement yesterday, Syria said the fact that Isis had not attacked the tomb "confirmed the depth of the ties between the Turkish government and this terrorist organisation".
Syria has long accused Turkey of supporting insurgent groups that have seized control of wide areas in the north and east of the country. Mr Davutoglu said the tomb would be returned to its previous location once conditions allowed.