What is this aircraft and the Air Force it belongs to?
Panavia Tornado, Royal Air Force (UK), 13 Squadron.

The aircraft in the question is identified as belonging to No. 13 Squadron by the distinctive green, yellow and black 'Squadron flash' painted on the aircraft side  below the front part of the cockpit. 



Royal Air Force roundel



13 Squadron flash



Above: a Tornado of No. 13 Squadron as seen at the 2007 CIAF air show in the Czech Republic. The squadron flew Tornado GR.1A aircraft from 1990, and later the GR.4 and GR.4A variants. 

Here is ZA401 (a GR.4) at RAF Leuchars in 2005 with the 13 Sqn flash painted on the tail as well as the normal place, as part of the Squadron's 90th anniversary celebrations: 



No. 13 Squadron RAF (Wikipedia)