Question

which best describes how a proxy war differs from a traditional war?
the opposing powers in a proxy war engage in a propaganda war.
the opposing powers in a proxy war use others to fight on their behalf.
the opposing powers in a proxy war use trade and economic means to fight each other.
the opposing powers in a proxy war never openly acknowledge their involvement.

Explanation:

A proxy war's core defining feature is that the main opposing powers do not fight directly, instead utilizing third parties (such as allied states, militias, or insurgent groups) to carry out combat actions on their behalf. Propaganda, economic tactics, and non-acknowledgment can be associated with proxy wars, but they are not the primary differentiator from traditional wars.

Answer:

The opposing powers in a proxy war use others to fight on their behalf.