The killing of Zimbabwean lion Cecil by an American dentist has taken the internet by storm. Protesters have paraded themselves outside of the dentist’s home. Jimmy Kimmel lambasted the killing in a wonderful monologue. And now, Arnold Schwarzenegger has weighed in on the story on his Instagram.

Unsurprisingly, the Terminator isn’t on the side of the dentist.

While Schwarzenegger never mentioned the dentist or Cecil by name, the former governor of California posted a photo of himself in front of a stop sign with a pretty strongly worded caption:

Stop killing big cats. Killing a lion isn’t ballsy. Going into the octagon or joining the military – that’s ballsy. Try that before you kill a lion. Protecting big cats = ballsy. I am in – join me at the link in my bio! #5forBigCats

The hashtag #5forBigCats is supportive of National Geographic’s Big Cats Initiative which works to provide “on-the-ground conservation and education support to preserve big cat populations worldwide.”

You can donate to the Big Cats Initiative by clicking on the link HERE.

[Arnold Schwarzenegger] via [For the Win]