Chapter XVIII. Offences against defence capability Article 140. § 1. Whoever, in order to weaken the defensive power of the Republic of Poland, commits a violent assault on a unit of the Armed Forces of the Republic of Poland, destroys or damages a facility or a piece of equipment significant to its defence shall be subject to the penalty of the deprivation of liberty for a term of between 1 and 10 years. § 2. If the consequence of the act is the death of a person or a serious detriment to the health of many persons, the perpetrator shall be subject to the penalty of the deprivation of liberty for a term of between 2 and 12 years. § 3. Whoever makes preparation to commit the offence specified under § 1, shall be subject to the penalty of deprivation of liberty for up to 3 years. § 4. In the case for offences specified in § 1 through 3, the court may decide on the forfeiture referred to in Article 39 point 4, including when the items are not owned by the perpetrator. Article 141. § 1. Whoever, being a Polish national, undertakes, without authorisation from a relevant authority, military duties in a foreign army or military organisation shall be subject to the penalty of the deprivation of liberty for a term of between 3 months and 5 years. § 2. Whoever assumes duties in a mercenary military service prohibited by international law shall be subject to the penalty of the deprivation of liberty for a term of between 6 months and 8 years. § 3. A Polish national who, at the same time, is a national of another state shall not commit the offence specified in § 1 if he resides within the territory of the latter state and completes his military service there. Article 142. § 1. Whoever, in violation of the provisions of law, conducts 8