Dacic tells Plenkovic he "can't sing Lili Marlene"

However - before he made good on this promise - Dacic responded to Andrej Plenkovic in an ongoing war of words between the two neighboring Balkan countries - to say that his lack of any further reaction would follow - unless, that is, Plenkovic "went out and said that Croatia's (WW2 military) companies had liberated Berlin, along with Red Army units."

This was an apparent dig - as the WW2-Ustasha-run Independent State of Croatia (NDH), a Nazi and Fascist-allied entity - could not have taken part in "liberating Berlin" in 1945.

This response late on Thursday came after Plenkovic spoke about Dacic as "a failed crooner" - specifically, a failed "schlager singer" - a loan word from German used in both Serbian and Croatian, and the term Plenkovic reached for in his original comment - apparently a reference to the Serbian foreign minister's documented penchant for singing in public.

But Dacic - who has been comfortable to, in the past, cover anything from Serbian, Russian, Greek, to Turkish popular and folk songs - while mostly performing for his high-level diplomatic audiences during the less formal portions of their interactions - revealed on Thursday that his "repertoire" nevertheless does not include "Lili Marlene" - a song whose title is in Serbia culturally a trigger word strongly associated with the brutal WW2 Nazi German occupation of the country.

In his response during the ongoing "Croatia-Serbia war of words," Dacic said:

"Sorry, Plenkovic, I can't sing Lili Marlene, or Thompson's 'For home ready'. And you, Croats, would have been better off hanging on to the schlager songs."

Speaking for the Tanjug agency, Dacic said that Plenkovic was "attacking Serbia every day because he needs...