(1) Whosoever undertakes, by force or through threat of force,

1.  to incorporate the territory of one member state in whole or in part into another member state of the Federal Republic of Germany or to separate a part of a member state from it; or

2.  to change the constitutional order based on the constitution of a member state

shall be liable to imprisonment from one to ten years.

(2) In less serious cases the penalty shall be imprisonment from six months to five years.