About 1995 the Wiccan Religion was accepted by the Military as a legitimate Religion that is granted to have regular ceremonies (just like other religions i.e.; Roman Catholics, Christians, Jewish Rites). I know for sure the US Air Force has accepted the Wiccan Religion per se.
Have you seen "Bewitched," "Charmed," "The Craft," "Warehouse 13," the "Twilight" Saga, the "Harry Potter" movie series phenomena,the "Sorcerer's Apprentice," and all the on-line magickal websites for spells, herbs, wands, magickal tools etc.?
If the USA Christians were at war with Wiccans I believe I get you to say, then all this would not have happened as it is now and proliferating. So, it is a fallacy for you to think of any such war at this time and age.
Must be some Christians puffy childish bravado at trying to instigate such an inane thought.