Lithuania
Practice Relating to the Use of Prohibited Weapons
Under Lithuania’s Criminal Code (1961), as amended in 1998, “an order to employ prohibited means of warfare or methods of combat and the employment of such [means or methods] in violation of the provisions of international agreements or universally accepted international customs regarding the means and methods of combat” are war crimes. 
Lithuania, Criminal Code, 1961, as amended in 1998, Article 340.