Boundary Incidents refer to the actions that occur in the border and directly adjacent areas, and violate this Agreement or other related bilateral boundary Agreements and laws of both sides, causing damage or having impacton the other side. 11. "Persons crossing border illegally”" refer to the individuals who violate the domestic laws of either side, the regulations of relevant international treaties signed by both sides or in which both sides are involved, enter the other side’s border from one side’s through unauthorized ports, channels or without legal and valid documents. 12. "Cross- border Waters" refer to the rivers located at the boundary line or other water bodies which are passed through the boundary line. 13. "Cross- border Facilities" refer to the railways, highways, oil and gas pipelines, transmission lines, electric cables, optical cables, bridges, culverts, dams, water gates and any other artificial installations. 14. "Aircrafts" refer to any machine that can derive support in the atmosphere from the reactions of the air other than the reactions of air against the earth’s surface including aeroplanes, helicopters, ultra-light aircrafts, gliders, airships, Unmanned Aerial System (UAS)and balloons. 15. "Force Majeure Event" means the occurrence of any circumstance, event of condition (or any combination thereof), or the effects thereof, beyond the reasonable control of the affected party, including but not limited to: a) flood, fire, drought, earthquake or other natural disaster, b) epidemic or pandemic c) terroristattack, civil war, war, armed conflict, embargo, blockade, imposition of trade sanctions; d) politically motivated and instigated strike occurring in the border areas for a continuous period of forty-eight(48) hours e) nuclear, chemical or biological contamination f) air crash, shipwreck, train wreck g) geological surprises ARTICLE 2 CHAPTER 2