United States involvement in the Boxer Rebellion would have contradicted the ideals George Washington laid out in his farewell address. It also would have violated the Monroe Doctrine by becoming involved in Europe's subject matters.
The answer is pi equals 3.14
It is important to these countries because it provides them with resources for food,transportation, trade and religion
Food: the Nile provides fertile land for agriculture and plantation, also the inhabitants can feed off the animals in the river
Transportation: due to its immense length, people can transport through water across the river to reach certain destinations.
Trade: due to the facility of transportation people can move from one place to another and trade goods.
Religion: for example the people of Egypt held the river as a god and praise it for all the good it brought to them.