Enemy
. ,
Actually they offer two cities, one in central part cca 100 000 citizen ( the biggest part of ground troops were from that regia- so message was quitte clear- try to win ground battle)
or city with 300 000 people- where majority of high officers have flats with families.
Answer was, wherre to sign?
And that also happened in WWII , when japanese military establishment refused to surrend at the end of war. Sign it or every third day- one city less. 06.08. Hiroshima, than 09.08. Nagasaki and there were preparation for third one on 12.08. But some japanese around Tsar send message to USA that TSAR will annpuce end of war. But they needed 5 or 6 days to organize that Tsar unrestricted made public speech over radio- that happened on 15.08.
So these 48 hours given Iran looks like ....