What did colonial troops promise

"Self-determination"

Explanation:

It planted the seeds of decolonization. Revolution took hold in Russia under the communists and threatened the governments of Germany, Italy, and others. Facilitated by the flow of millions of people put in motion by the war, the exchange of ideas, customs, and artistic expression spread new forms of global culture, even fueling an international jazz craze.

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.

there were abundant sources of fuel nearby