In 1812, Napoleon Bonaparte's French forces faced the Russian Winter, the lack of supplies and constant guerrilla warfare by Russian peasants and irregular troops.
animals migrate because of change in weather or plague in the area.
Apollo didn't spread a single plague over the Greeks. Instead, he shot infected arrows at the soldiers during to Trojan War.
People died, so there were no soldiers to fight in the crusades, so the crusades fell apart. Also many soldiers returned home to find their family taken by the plague. It also broke the religious will of the soldiers. Many were fighting because they were trying to please the Pope and God. They thought God sent the plague, so He must not like the crusadce
they tried to escape but the king sent soldiers to guard the towns so no one could escape.
Over the history of warfare, the plague is probably the most commonly used form of biological warfare. There are two reasons most people wouldn't use it now - it's easy to treat with antibiotics, and every army vaccinates its soldiers against it.
the diseases caught by soldiers were nephritis, an inflammation of the kidney, and dysentery, the inflammation of the lining of the large intestines.
The collective noun plague (a word for a dangerous disease that spreads quickly) is used to group things that are harmful and have become too common (a plague of violence, a plague of accidents); or things that have become too great in number, seemingly our to control (a plague of locusts, a plague of rats).
a plague of frogsthe great plague of eyam
The black plague. The plague was transferred by rats.
Because they tried to cure the plague. Doctor who cures the plague --> plague doctor.
the weather, the Hundred Years' War, the Black Plague, the papal schism, pillaging mercenaries, and popular revolts, including the Jacquerie in France
the-plague of gnats