Their alleged causus belli was that Macedonia's name implied a claim to a Greek province.
In reality, the Greeks want to imagine that the foreigner who conquered Greece 2500 years ago was actually Greek, and their feelings were hurt.
Those delicate snowflakes:
The leaders of Macedonia and Greece reached an agreement on Tuesday to end a 27-year feud surrounding the Balkan country's name.
The prime ministers Alexis Tsipras and Zoran Zaev have agreed to refer to Macedonia as the Republic of Northern Macedonia, or Severna Makedonija in the Macedonian language. The name change is an effort to prevent territorial claims to Greece's northern region of Macedonia.
Greece's Macedonia includes the major port city of Thessaloniki, and tensions have existed between Greece and its neighbor for over two decades following the breakup of Yugoslavia.
The capital of Skopje adopted the name of Macedonia in 1991, following its independence, and Greece vetoed the country's bid to join NATO and the European Union over the name dispute.