Secret Intelligence Service (SIS or MI6)
The SIS building at Vauxhall Cross (Tagishsimon at the English-language Wikipedia, CC3.0).
The Secret Intelligence Service (SIS), popularly known as MI6, is Britain's main foreign intelligence service.
The SIS building at Vauxhall Cross (Tagishsimon at the English-language Wikipedia, CC3.0).
The Secret Intelligence Service (SIS), popularly known as MI6, is Britain's main foreign intelligence service.
