NATO launches its biggest-ever drill in Germany 

The NATO military alliance is set to conduct war games in the skies over Germany. Three flight zones will be temporarily closed to civilian air traffic, and delays to civilian flights are expected, Report informs, citing DW.

The German Air Force is facing its biggest challenge in decades: After four years of preparation, the NATO military exercises Air Defender 23 is set to begin on Monday, June 12.

It's the biggest drill of its type since the military alliance was formed in 1949, and Germany will serve as the host and logistical hub.

From June 12 to 23, up to 250 aircraft will be stationed across six military bases, with 25 countries taking part. US forces are sending the F-35 stealth combat aircraft, the alliance's most modern fighter jet, to take part in the exercises.

More than 10,000 soldiers from NATO countries will participate in numerous drills.