UFO Sighting in Bensalem, Pennsylvania on June 11th 2015 – 2 clear circular crafts siluette with sky camo or cloaked

I was out on my deck smoking a cigarette. I love to look at the sky and imagine astral projection. I was looking pretty much directly westward and I noticed two huge spheres clear in color or like a chameleon was able to match the color of the sky. Approximately 2 minutes later I seen 4 F-15s (I think they were F-15s.)I dont know of any air force bases around here, so I suspect they were trailing the objects for awhile. I was not startled at all. Purely curious. I watched the objects fly northwest and disappeared behind trees that totally block out the horizon. This is not my first sighting, but this was without doubt extraterrestrial. Respectively, Stephen Hawking said E.Ts would be malevolent, but my theory is that if they have this super technology, they obviously have been around for millions or billions of years. For thier race to make it to the point where their technology is far beyond ours means they probably were peaceful unlike us. I subscribe to the ancient astronaut theory and believe humans have been "helped" genetically as well as in other ways. I also think that before the flood there were civilizations superior to our own. If humans were from earth, we would be able to live on earth harmoniously with nature.