Can You Tell How Many F-35 Fighter Jets Are In These Pictures?

As President Donald Trump said on Friday: "It's very tough to beat a plane when you can't see it."

President Donald Trump on Friday signed a massive spending bill, after threatening to veto it (even though that would shut down the government), and spent a lot of time talking about how much he hates it.

It's not the first time that Trump has seemed to imply that F-35s are actually unable to be seen by human eyes — maybe because they're fast? It's hard to tell.

But let's see if he's right! Take a gander at these pictures and see if you can spot the planes.