According http://aviation-safety.net/wikibase/wiki.php?id=155374 an Il-76 was destroyed at Deir Ezzor airbase. According https://www.youtube.com/watch?v=4tjJ6SRvO0Y they say the type of airplane cannot be identefied.
If you ask me it looks like Yak 40 http://www.flickr.com/photos/superspotter/3742724835/
Here some images of captured Mig 21's http://luftwaffeas.blogspot.nl/
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