Answer:The use of land mines and poisonous gases in war is illegal because they cause indiscriminate harm to both military and civilian populations. Land mines can remain active for years after a conflict has ended and can harm innocent civilians who come into contact with them. Poisonous gases can cause severe and long-lasting harm to individuals who are exposed to them, including death.
One example of the use of land mines is in the Iran-Iraq War, where both sides used land mines extensively. The use of land mines resulted in the deaths of thousands of civilians and caused long-lasting damage to the environment. In another example, the United States used land mines during the Vietnam War, resulting in the deaths of many civilians.
One example of the use of poisonous gases is during World War I, where both sides used poisonous gases. The use of poisonous gases caused severe harm to individuals who were exposed to them, resulting in many deaths. In another example, Saddam Hussein used poisonous gases against the Kurdish population in Iraq in the 1980s, resulting in the deaths of thousands of civilians.
Perpetrators of the use of land mines and poisonous gases have been prosecuted in some cases. For example, the International Criminal Court has prosecuted individuals for the use of land mines and poisonous gases in conflicts. However, prosecution is not always possible, especially in cases where the individuals responsible for the use of these weapons are no longer alive or cannot be identified.