"David Windhorst" wrote in message
...
What are some early examples of an air force facing hostile a/c
originally produced by its own country's aviation industry (whether they
were sold to a former friendly nation that then became an enemy, or were
captured a/c, or whatever)? The first case I can remember reading about
is during the Allied invasion of N. Africa, when P-36s flown by Vichy
French were encountered, but it seems there must have been previous
instances -- WWI, interwar, or earlier WWII.


There were several clashes between Me-109's of the Swiss Air Force
and the Luftwaffe in June 1940 as German incursions into Swiss Air
space occurred. Several German aircraft were shot down and 3 Swiss
airmen were killed.

During the Iraqi rebellion of 1941 British supplied aircraft fought
a number of actions with the RAF aircraft based at Habbaniyah.

Keith