https://chroniclingamerica.loc.gov/lccn/sn83045462/1918-06-16/ed-1/seq-1/

The U.S. has aimed thousands of chemical shells at the Germans at Chateau Thierry, a "taste their own medicine." Ten thousand of the bolsheviki red guard have been killed by the German supporting armies and the bread supply to Moscow and Petrograd are threatened.

Source: "Americans Bathe Enemy Positions With Deadly Gas," The Sunday Star, June 16, 1918. Page 1, Column 4