Yes, as was the case with Russia in Aleppo, the United States does use incendiary munitions ..
Aldin Abazović 🇧🇦 on Twitter
“#ISIS footage of #UnitedStates Coalition bombardment of #Raqqa neighborhood with White Phosphorous munition. #Syria https://t.co/Lx2ajuXvps”
https://twitter.com/CT_operative/status/872912807053979648