Mack Reynolds 
Amazon Planet 

Amazonia had a reputation for strangeness even among the zany worlds of the United Federation of Planets. It was a spartan planet ruled by a fearsome military caste – made up exclusively of women. The males of Amazonia usually wound up in some warrior’s harem.When Guy Thomas arrived he was allowed the privilege of landing only because he offered the government profitable trade agreements, but it wasn’t long before his real plans were fulfilled by his secret meetings with the male-liberationist revolutionary group, The Sons of Liberty. They needed a lot of help.The more he got involved, however, the more he got the feeling that something was wrong with the whole setup. Guy Thomas was soon to learn that there was more to Amazonia than met the eye – and he wasn’t going to like the truth at all.