According to Marshall, why were the problems experienced by Europeans in the post-war era difficult for the average American to understand?

Post war Europe was reeling in from the destruction of not just their people but their lands and cities which took years to recover.

Explanation:

The war was fought extensively on the European soil and led to the degradation of the land to the point that it was difficult to get it back to what it used to be before the war.

It was not an issue for the Americans as the war never quite reached their own shores in the sense that none of it was on the mainland. This means that no common Americans died in the war directly.

It also meant that the infrastructure and social structure of US was largely intact which was not the case with Europe after the war.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.