Charles Ellicott Commentary Ezekiel 27:11

"The men of Arvad with thine army were upon thy walls round about, and valorous men were in thy towers; they hanged their shields upon thy walls round about; they have perfected thy beauty." — Ezekiel 27:11 (ASV)

The Gammadims were in thy towers. —No people of this name is known, and it is extremely unlikely that the responsible posts upon the watch-towers would have been entrusted to foreigners. The word occurs only here, and is probably not a proper name, but should be translated brave men.