Islamabad, Pakistan — The war launched by the United States and Israel on Iran has already killed more than 1,400 people, set off retaliatory attacks by Tehran targeting Gulf nations and Israel, and pushed global oil prices above $100 a barrel.Now, eighteen days into the conflict, aid agencies and countries neighbouring Iran are increasingly concerned about a potential refugee crisis.Recommended Stories list of 4 itemsend of listThe United Nations refugee agency, UNHCR, estimates that 3.2 million people have already been displaced in Iran since US-Israeli strikes began on February 28. For now, the number of people physically crossing Iran’s borders remains comparatively modest. But this is what could happen next, and has put Iran’s neighbours on high alert.Iran borders seven countries: Afghanistan, Armenia, Azerbaijan, Iraq, Pakistan, Turkiye and Turkmenistan. Iraq shares the longest frontier, stretching for almost 1,600km (994 miles).Each of these states faces its own political pressures, economic limitations and security concerns.But pressure on the ground in Iran is mounting. The country’s Red Crescent Society reports that more than 10,000 civilian sites have been damaged since the war began, including 65 schools and 32 medical facilities, while more than 1,400 people have been killed in the US-Israel attacks. Strikes have hit residential areas in Tehran, Shiraz and Isfahan.Meanwhile, commercial flights out of Iran have been suspended as airspace is closed.Eldaniz Gusseinov, head of research at the geopolitical advisory firm Nightingale Interna …