Footage has emerged that appears to show a US missile targeting the Islamic Revolutionary Guard Corps (IRGC) naval base adjacent to the school where Iranian state media say scores of children were killed.

The US Navy's Tomahawk cruise missiles have been used heavily in recent conflicts, deepening the strain on its stockpile.

Three new American systems stand out in the air campaign against Iran: the newly-introduced “PrSM” missile, the low-cost “LUCAS” drone, and a new Tomahawk missile with apparent stealth capabilities.