@@EspressoEnglishNet This is a line from the last episode of Justice League season 1(2001-2004). In this episode Justice League teams up with a fictional squadron called Blackhawk to attack a German factory where the Nazi builds Jet Engines to invade America. To thwart their mission Superman, Hawkgirl takes out the anti-aircraft batteries while flash drives out the factory workers from the attack zone. When the last cannon was destroyed the Blackhawks captain says, "that's the cannon we're clear to make our run". Afterwards they destroy the factory with an airstrike. That was the context.
