15. 'Facts of state'.

There is a class of facts, which may be termed 'facts of state'1, consisting of matters the determination of which is left to the executive. Examples of 'facts of state' include:

(1)     whether a state of war exists between the United Kingdom and a foreign state2 and, if so, when it began3, or whether a state of war exists between foreign states4;

(2)     whether particular territory is hostile5, or foreign6, or within the boundaries of a particular state7, or a constituent territory of a federal state8, or occupied by a particular power9 and, if so, between which dates10;

(3)     whether particular territory