North Korea
From Tardis Wiki, the free Doctor Who reference
North Korea was an Asian nation. With its rival, South Korea, it made up Korea. China lay to the west, Japan to the east, and Russia to the north.
By the year 2009, North Korea was part of the worldwide nuclear grid overseen by UNIT. (DW: The Poison Sky)
In the wake of Miracle Day, the North Korean regime viewed its population as immortal soldiers and began to mobilise troops along the border with South Korea. (TW: The New World)