Europe's system of military alliances enlarged small conflicts
They were needed in the workforce because all the men were out overseas fighting wars.
<span>Assuming that this is referring to the same list of options that was posted before with this question, in this speech Jackson is hinting that he will not be an overbearing president. </span>
A shortage of traditional labor created new opportunities in the workplace.
Mainly due to a majority of the working men being drafted to the military due to them being the some of the most fit people available.
The development of agriculture allowed for previously nomadic tribes to settle on one land for an extended period of time.