How did the use of mercenaries by the roman army contribute to the eventual collapse of the empire? Please write it in a paragraph please.

In desperate need of soldiers to help with the invasions, Rome hired mercenaries to defend its borders. According to some historians, many were Germanic warriors who did not feel loyalty to Rome. ... The most evident factor of the Roman Empire's fall was the invasions.

Explanation:

for starters, there is the structural trend of rising primary government expenditure as a share of gdp, which reached 36% in 2014, up from 22% in 1991. this increase reflected a political desire to address the poverty and inequality that had gone unaddressed during previous decades. to support the increase, brazil’s government increased taxes on consumption and promoted progress toward labor-market formalization. nonetheless, public investment, particularly in infrastructure, took a hit. in fact, with the exception of the 2005-2008 period, total investment as a share of gdp has remained below 20% since 1991.