New Delhi, March 4 -- Iranian drone attacks could disrupt the Strait of Hormuz for months, but how long the Islamic Republic could sustain its missile barrage is less clear, according to intelligence sources and military analysts.

Since the U.S. and Israel attacked Iran on Saturday, Iran has launched hundreds of missiles and more than 1,000 drones at Gulf states allied with Washington. Most were intercepted by air defences, but some residential and commercial buildings, infrastructure and U.S. military bases have sustained damage.

Tehran is a major drone manufacturer and has the industrial capacity to produce around 10,000 per month, according to the Centre for Information Resilience, a non-profit research group funded by Britain's Fore...