There are environmental wars

War could be defined as the open manifestation of violent confrontation between groups of people or countries, with the use of weapons of different nature and whose objective and result is to inflict damage on the other, manifested as material losses, functional losses, injuries and death of people..

The United Nations (ONU) has banned the use of biological weapons in warfare. This international body, on the one hand prohibits biological weapons and not war, could not fail to comment on this.

The ONU also recognizes the existence of biological warfare. It is expressed in different media and opinion articles, that some countries and human groups have, process or store biological weapons in stockpiles or arsenals..

Biological warfare is when biological weapons, viruses, bacteria, fungi, and their toxins are used in a military conflict, dispersed directly or by means or vehicles (infected objects or food, live or dead infected animals, arthropods that transmit metaxenic diseases, people carrying infectious diseases (infected), both alive and dead, and others)..

Perhaps biological weapons are as old as hunting or warfare. Some cultures used biological substances in their arrows for hunting or warfare, completing the mechanical effect with the toxic effect. In Homer's works (The Iliad, The Trojan War, The Odyssey), the custom of inoculating the tips of arrows and spears with intoxicants or poisons of vegetable origin is recorded.

The poisoning of water and food reserves as in the First Sacred War between Delphi who attacked the city of Cirra, destroying it using among other weapons the poisoning of the supply pipe of its water reserves with a toxin from the hellebore plant (Greek: to damage food), causing a terrible diarrhea in the inhabitants and warriors of Cirra.

This practice of poisoning water supplies in times before Christ is also attributed to Roman troops. In the U.S. Civil War, the water supplies of the Union armies were contaminated with farm animals thrown by the Confederates..

The groups of Iranian origin (Scythians) used snake venom in their arrows in times before Christ. Among the native cultures of America and Africa, the use of toxic vegetable substances in arrows or blowguns for hunting or for their confrontations with other human groups has also been described up to the present day..

The release of animals is also a frequent occurrence.

In the 1300s there were practices of throwing animals. Examples were when the Mongol armies threw corpses of people with bubonic plague on the walls of Kafka (Theodesia). Also in the Hundred Years' War, dead animals were thrown into the city of Thun l'Evaque.

Around 1422, the "Hussites" threw feces and human corpses at Karlstein Castle in Bohemia..

Smallpox inoculated instruments were used as a weapon of war, in 1763 at Fort Pitt to the representatives of the Delawres who besieged this installation, they were "provided" with blankets (infected with smallpox). It is also up to the English to carry smallpox in letters to the Pontiac cultures in uprising..

In 1940 Japan released bubonic plague-transmitting fleas over China (Nongbo and Changde City)..

Attacks on Vietnamese crops have been reported as biological warfare, spreading the rice rust fungus..

Biodiversity release also verified.

Hannibal of Carthage and his armies threw snakes on the decks of enemy ships, Sextus Julius Frontinus wrote of the use of throwing swarms of bees. The city of Hata defended itself from its attackers by throwing vases with scorpions at them.

There are accusations of biological warfare against Cuba that the United States sent tobacco mosaic virus and mosquitoes loaded with dengue. There are also conspiracy theories that indicate that Brazil on the occasion of world games, Olympics and World Cup, to be inoculated of mosquitoes with Chikungunya first and possibly Zika.

Bacteria such as the germ that causes typhoid fever, salmonella, in 1940, the Hanganá group spread in the reservoir waters of Acre, developing this disease.

Brusellosis was inoculated by the United States in bombs during the Korean War..

Biological warfare was recently present a few years ago in the Bolivarian Republic of Venezuela, during the so-called Second Guarimba, when violent protest groups used fecal feces (puputov) to launch against Police and National Guard forces. This is a vehicle for bacteria, viruses and fecal parasites.

From the point of view of its nature and its pathological-epidemiological importance, the civilized management of excreta is guaranteed by sanitation measures with the establishment of latrines and an integrated wastewater management system. Our country made efforts since Arnoldo Gabaldón, whom we consider the father of environmental medicine, gave great importance to the installation of latrines for the peasant and suburban population.

Currently in Maracaibo, a western city of the Bolivarian Republic of Venezuela, there is a strange death of a number of Mango plants (Manguifera indica), whose fruit has become important as a food source at this time when an economic siege known as "Economic War" has been proposed, so it is being investigated as an episode of biological warfare..