Chairman of the Joint Chiefs of Staff Mark Milley dismissed the George Floyd riots as “penny packet protests” — insisting it wasn’t an insurrection because the mobs only “used spray paint,” according to a new book.

The under-fire general — accused of going behind then-President Trump’s back to contact his Chinese counterpart — wildly downplayed the riots when Trump raised fears they were “burning America down,” according to Fox News excerpts from the new book, “Peril.”

“Mr. President, they are not burning it down,” he told the alarmed commander-in-chief, according to authors Bob Woodward and Robert Costa.

“They used spray paint, Mr. President, that’s not an insurrection,” he told Trump.