Related Rule
Practice Relating to Rule 2. Violence Aimed at Spreading Terror among the Civilian Population
Uruguay’s Law on Cooperation with the ICC (2006) states:
26.2. Persons and objects affected by the war crimes set out in the present provision are persons and objects which international law protects in international or internal armed conflict.
26.3. The following are war crimes:
37. … carrying out acts or threats with the objective to terrorize the civilian population. 
Uruguay, Law on Cooperation with the ICC, 2006, Articles 26.2 and 26.3.37.