Board Thread:General Discussion/@comment-24402683-20131012015855/@comment-4057437-20140525045621

It doesn't matter, the Argonians have an overwhelming home turf advantage due to their waterbreathing ability and resistance to the diseases in Black marsh. Diseases were the most important reason that the European powers had so much trouble with holding on to colonies in tropical areas. In the 19th century, the average life expectancy of an European in the tropics (except for Oceana -Tahiti, etc.), was about 6 months.

Before anyone tries to say that healing spells and potions could solve this, the lore records that the Knahaten Flu killed anyone not of reptillian blood, period. No mention is made of successful intervention with healing spells or potions. There is also speculation that it was created by an Argonian shaman. If true, there is the possibility that more devastating diseases could be cooked up to help defend Black Marsh.