Mycroft Holmes: Everyone Dies. All hearts are broken. Caring is not an advantage.
And at that moment I became a crying mess
Me when people wonder why I don't go out
Sherlock, Mycroft and 'the other one'. Could there be another ...
Even though the pair may hate each other both know that they wouldn't last a day without either of them both
THAT LAST COMMENT. YOU KNOW IT WAS INTENTIONAL. MYCROFT COLOR-COORDINATES WITH ARCHITECTURE.
Sherlock S04 EP02 "The Lying Detective". Season 4.
Okay, so Rebekah TJLC Explained has suggested that most of the stuff Mycroft is involved is in Asia, but I think, not all. He "wades in" to Serbia, and he obviously involves himself with Magnussen, who is European, has well as issues of "national" importance, like the Bruce-Partington plans. Perhaps he is simply involved in issues of surveillance and "secret states"?