Pakistani National Security Chief in Iran.

[SOHEIL]

What language do they communicate in?

Mugwopian

 

[Mugwop]

Mugwopian

I was hoping it was Farsi

 

[Śakra]

What language do they communicate in?

The the only language appropriate for diplomacy, the language that both subtly and strength can be conveyed, Deutsch.

 

[Arminkh]

The the only language appropriate for diplomacy, the language that both subtly and strength can be conveyed, Deutsch.

Farsi is good in that regards as well. Although it doesn't sound as harsh as Deutsch: