ペリリューの戦い
The next important battle came in the middle of September 1944, when III Marine Corps launched the Battle of Peleliu. Silverthorn distinguished himself again during the planning and execution of the campaign and was promoted to the rank of brigadier general in December 1944. He later participated in the Battle of Okinawa in April 1945 and received the Navy Distinguished Service Medal for his service during Peleliu and Okinawa campaign.