I believe your trip to WDW will be 100% unaffected by anything that happens with a war. Already, everyone has been having their bags checked when entering the parks. The last thing our President, our entire government, the State of Florida, and the Disney Company themselves want to see happen is any kind of negative economic impact due to war. If anything, be sure to double check your rates before you go as Disney may DROP prices to ensure a continued cash flow into their coffers. The money you will spend on gasoline, food, hotels, your stay at WDW, Souveniers, etc is what keeps the economy going. The best thing you can do is not worry, and buy buy buy/spend spend spend! And is there anything more American than going to Walt Disney World? Enjoy!