Here is a bit more, from http://www.historylearningsite.co.uk/warsaw_uprising.htm

Flying out of Brindisi in Italy, 186 flights were made to supply ‘Bor’ Komorowski’s Home Army. The flight was 1,400 miles there and back and full of danger. Only 83 planes successfully delivered their load and 33 were lost with their crew, including 13 planes with a Polish crew. Such a rate of attrition was too high.

Stalin was asked that Allied air crews be allowed to use Russian air bases. On September 10th, against all indications, Stalin gave permission for Russian airfields to be used by Allied planes. On September 18th, 110 planes of the US 8th Air Force made a daylight drop on Warsaw and flew on to Russian air bases. Only nine planes were lost. Ironically, it was a strong wind that ruined this flight as only 30% of the equipment dropped got to Komorowski’s forces – other equipment dropped into the hands of the Germans.

Canada, perhaps?

They look like the electronics “black boxes”, “Line Replaceable Units” in RAF jargon.

It seems to me that the title was written with tongue in cheek – and they certainly aren’t biplanes!
Our T87 radar, being high power continuous wave, was considered by us technicians to be an outdoor microwave oven, since it would fry anyone within 200 yards of the focused beam when transmitting!

What the article (but not the photo) presumably was about:
One Sea Harrier was shot down on 16 April 1993. The pilot, Royal Navy Lieutenant Nick Richardson, ejected and was picked up by British Special Air Service (SAS) rescue team. The SAS commandos led Richardson through enemy lines and the group was then picked up a French helicopter.
From http://www.vectorsite.net/avav8_2.html