You can't the most you can do is get dehydrated
The correct answer to this open question is the following.
Although the map is not attached to this question and we can not do the matches, we indeed can say the following.
The oldest civilization known to man was the Sumerian civilization that settled in the middle of the Tigris and Euphrates Rivers in the Middle east, what today is Iraq. They developed agriculture techniques that allowed them to use the flooding of the rivers to grow crops such as wheat.
Then in 5,000 BC, people in China grew rice, an important crop that was exported. At the same time, but in Mesoamerica, important civilizations such as the Aztecs in Tenochtitlan(modern.day México) were experts growing corn. In 4,000 BC, people from the region of the Mediterranean (modern-day Italy) started to grow olives. At the same time, but in the South America Andean region of Peru, the Incas started to grow potatoes.
In Europe, during the 18th century, the classic non-national states were the multiethnic empires, the Austrian Empire, Kingdom of France, Kingdom of Hungary, the Russian Empire, the Ottoman Empire, the British Empire and smaller nations at what would now be called sub-state level.
Answer:
Something unique about the war was that we generally did not take, occupy, and control land, our strategy was to kill the enemy
