Why Rodrigo Duterte Was Arrested Now

The arrest warrant was delivered to President Ferdinand R. Marcos Jr. of the Philippines in Manila at 3 a.m. Monday. The person named on it: his predecessor, Rodrigo Duterte, the firebrand whose war on drugs left thousands of people dead.

But acting on the warrant from the International Criminal Court was not straightforward, since the Philippines is not a member of the court. So at 6:30 a.m., Mr. Marcos’s government received another warrant for Mr. Duterte, this time from Interpol, which was acting on the court’s behalf and of which the Philippines is a member.

Mr. Marcos recalled his next step in an address to the nation on Tuesday. “OK, we’ll put all our plans into place, and let’s proceed as we had discussed,” he relayed having told the head of his justice department.

Just over 24 hours later, Mr. Duterte — who long seemed above the law — was arrested in Manila. By the end of Tuesday, he had been put on a plane bound for The Hague to face charges of crimes against humanity.

It was a swift coda to a long chapter of impunity in the Philippines. Only a handful of people have been convicted in connection with the killings in Mr. Duterte’s drug war, in which as many as 30,000 are estimated to have died. Now, the man who publicly took credit for the carnage was being sent to a court of law to face justice, in part because of a shift in political winds.

Mr. Marcos, the son of the dictator Ferdinand E. Marcos, rose to power after forming an alliance with Sara Duterte, a daughter of Mr. Duterte’s. Running on a platform of national unity, they won the presidency and vice presidency in 2022. But their marriage of convenience started unraveling quickly, driven by mistrust.