Related Clues:

• Invasion date
• WWII invasion date
• Do-or-die time
• WWII turning pt.
• 1944 invasion
• '40s turning point
• Threat ender
• Its password was Mickey Mouse
• Moment of truth, maybe
• Decisive moment
• 6-6-44
• Time for decisive action
• June 6th of 1944
• See 87 Across
• Crucial moment, militarily speaking