Then under whose authorization have I been shooting other countries’ and other planets’ stuff out of the sky all this time?

President Trump Signs Defense Bill Creating Space Force — First New Military Branch Since 1947
Breitbart | Dec 20, 2019 | Kristina Wong

ANDREWS AIR FORCE BASE, MARYLAND — Flanked by two fighter jets and in front of a giant American flag, President Trump on Friday signed the 2020 National Defense Authorization Act that officially created the Space Force, the sixth and first new military branch since 1947.

“For the first time since Truman, we will create a brand new American military service,” Trump said. “You will witness the birth of the Space Force. That’s a big moment and we’re all here for it.”