India, June 23 -- A lot of planning, courage and a veil of secrecy were key to US' attack on key nuclear sites in Iran, officials have revealed. On Saturday night, people noticed a group of B-2 bombers take off from their case in Missouri, a move that experts thought was aimed at striking Iran. But the jets were a decoy.

The real group of seven bat-winged, B-2 stealth bombers flew east undetected for 18 hours, keeping communications to a minimum, refueling in mid-air, the US military revealed on Sunday.

Dubbed 'Operation Midnight Hammer,' the strike was the largest ever B-2 stealth bomber operation in US history and came together under a veil of secrecy that caught Iran entirely off guard, Pentagon officials revealed on Sunday.

The att...