With questions mounting over the impact of the U.S. and Israeli onslaught on Iran's nuclear facilities and military infrastructure, a return to hostilities could be a matter of when, not if.

The fast-changing war between Israel and Iran, in which the U.S. recently inserted itself by targeting Iran’s nuclear sites, has caused a mix of emotions — including fear and uncertainty — among many in the Iranian diaspora in America and also showcased differences of opinion over the country’s future.