<div>The league forced all the nations to ban slavery and it organized a conference against it.</div>
<div>The International Health Organization worked for the destruction of deseases such as leprosy, cancer, etc. It also made health services available everywhere.</div>
<div>The International Worker Union organized a conference for the betterment of the labourer's conditions.</div>
<div>Former war prisioners and refugees were helped taking them to their home country. After the war, approximately 400,000 prisioners were returned to their homelands by the League. They have also removed some dangerous deseases from the battlefields.</div>
<div>The League marked shipping lanes and had the idea of creating an international code for rode users.</div>