(1) The President or a person authorised by the President may make treaties, conventions, agreements or other arrangements between Uganda and any other country or between Uganda and any international organisation or body, in respect of any matter. (2) Parliament shall make laws to govern ratification of treaties, conventions, agreements or other arrangements made under clause (1) of this article. Declaration of a state of war. 124. Declaration of a state of war. (1) The President may, with the approval of Parliament, given by resolution supported by not less than two-thirds of all the members of Parliament, declare that a state of war exists between Uganda and any other country. (2) Where it is impracticable to seek the approval of Parliament before declaration of a state of war, the President may declare a state of war without the approval but shall seek the approval immediately after the declaration and in any case not later than seventy-two hours after the declaration. (3) Where the President makes the declaration of a state of war under clause (2) when Parliament is in recess, the Speaker shall immediately summon Parliament to an emergency session to sit within seventy-two hours after the declaration of a state of war. (4) The President may, with the approval of Parliament, given by resolution, revoke a declaration of a state of war made under clause (1) or (2) of this article. National Planning Authority. 125. National Planning Authority. There shall be a National Planning Authority whose composition and functions shall be prescribed by Parliament.