U.S. diplomats unfurled Black Lives Matter banners to commemorate the first anniversary of George Floyd’s murder, as Secretary of State Antony Blinken launched a public relations campaign to condemn racism at home and abroad.

“On the anniversary of George Floyd’s murder, we remember that to be a credible force for human rights around the world, we must face the reality of racism at home,” Blinken wrote on Twitter, with an accompanying video. “By addressing our shortcomings openly and honestly, we live up to the values that we stand for worldwide.”