Because there's things you don't know about that land, think outside the box also think christianty. I would start by researching the resources that are abundant there. You might say let's get them else where? ok so your gonna let a bunch of crazed shria law run groups control those resources an become a world power? To later come on gums blazing when you could have stopped them there.

Even without that we were fighting there flr thousands of years its extremely important who ever controls there has peace on there own lands it's very simple.