By Maha El Dahan and Jana ChoukeirDUBAI, May 22 (Reuters) - There is a "50-50 chance" of a U.S.-Iran peace agreement, the United Arab Emirates' presidential advisor said on Friday, but stressed that any political settlement must address the root causes of instability in the region to avoid future conflict.Pakistan has been mediating a U.S.-Iran ceasefire to end the war that has shaken the global economy and disrupted trade through the Strait of Hormuz, a key route for around a fifth of global oil and liquefied natural gas shipments.

Another round of fighting between the United States and Iran would further complicate the situation, while any political solution must address underlying

By Maha El Dahan and Jana ChoukeirDUBAI, May 22 (Reuters) - There is a "50-50 chance" of a U.S.-Iran peace agreement, the United Arab Emirates' presidential advisor said on…