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What is this aircraft and what country produces it?
Source: Google Images
This is a Raytheon Sentinel R1, which is produced by Raytheon (US) and Bombardier (Canada). The aircraft in your picture is operated by the Royal Air Force.
(Image Source: WikiPedia - Author: Alan Radecki)
This is a Raytheon Sentinel, built primarily for the United Kingdoms Royal Air Force.
In fact, the same aircraft is pictured on the Wikipedia page:
Required, but never shown