Twitter CEO Elon Musk blasted Tim Cook and Apple on Twitter on Monday over Apple’s advertising halt on the social media platform; Musk is ready for war.

“Apple has mostly stopped advertising on Twitter. Do they hate free speech in America?” Musk asked. “What’s going on here @tim_cook?”

“Apple has also threatened to withhold Twitter from its App Store, but won’t tell us why,” Musk added.

Musk then posted a poll: “Apple should publish all censorship actions it has taken that affect its customers[?]”

According to the Daily Wire, Musk highlighted an account that claimed to have been silenced by Apple and asked, “Who else has Apple censored?”

Musk also renewed his criticisms of the fees that Apple charges app developers, “Did you know Apple puts a secret 30% tax on everything you buy through their App Store?”

Musk stated back in May that “Apple’s store is like having a 30% tax on the Internet.”

“Definitely not ok,” he said. “Literally 10 times higher than it should be.”

Musk also shared a meme suggesting he would rather “Go To War” with Apple than “Pay 30%.”