What is rearment?

What are some problems of World War 1 that contributed to the eruption of World War 2 in Europe?

Harsh reperations were to be payed to the allies by Germany which caused inflation, you had to brina weeks pay home in a wagen. With people starving this is a perfect bredingground for the type of person as Hitler. When the Nazi party was first introduced into the Reichtag (Similar to parlement building) They had few seats but when the conditions became worse and people became more desperate the Nazis popularty skyrocketed, Hitler began mass open rearment tore up the tredy of virsallious (Sp??) which stated that both these things were prohibated.