President Donald Trump announced Bolton’s dismissal by tweet on Tuesday, saying he had “disagreed strongly with many of his suggestions,” presumably meaning his advocacy for military-enforced regime change in Syria, Venezuela, North Korea and Iran. Bolton insisted that he attempted to resign before Trump’s announcement.

Reaction flowed in swiftly, with some commenters in the media lamenting the war-hawk’s departure. However, the discussion was punctuated with a steady flow of jokes and memes, poking fun at Bolton’s two undying loves: military conflict and the mustache of an 1800s prospector.

Rumors had circulated that, prior to his departure, Bolton and Trump had argued over a planned summit with Taliban leaders at Camp David. Though canceled after several attacks in Afghanistan, the summit –which Trump hoped would bring about an end to the 18-year conflict in Afghanistan– was roundly criticized by politicians on both sides of the aisle.

Some memers also wondered after the firing whether Bolton would follow the well-worn path from the White House to the cable news studios, where he could unload on the Trump administration as a ‘national security expert.’

Trump has not yet announced a replacement for Bolton, but said he will do so “next week.” The internet, meanwhile, had some suggestions.