The most likely way in which scarce resources might be obtained in a destabilized country is:
People in a destabilized country might use force to obtain whatever resources that they have enough power to take for themselves.
In situations where governance is weak or nonexistent, individuals or groups may resort to violence or coercion to seize control over limited resources. This often leads to a breakdown of social order, as competing factions vie for access to food, water, and other essential commodities.