That's not necessarily true. Excluding the obvious comparisons with Russian and Chinese weapons sales, France, Sweden, and Israel also have significant defense

That's not necessarily true. Excluding the obvious comparisons with Russian and Chinese weapons sales, France, Sweden, and Israel also have significant defense exports. America has a huge export market for weapons because America has a huge defense industry. Even a small percentage of that turning into export sales results in some pretty eye-popping numbers. I would be willing to bet that, as a proportion of their overall defense industries, French and Swedish export sales are much larger than America's.