The people engaged in or available for work, either in a country or area or in a particular company or industry
I’m pretty sure the answer is Asia
Many people were concerned about many different things depending if you were wealthy, poor, Jewish or Russian.
Farm animals gave the disease to European farmers, and they gave it to the Native Americans.
By this quote he was trying to tell that the issue of peace is everyone’s concern. It is their duty to help others if they expect the same kind of help in the future.