Space: Above and Beyond (1995)

S1E18 Pearly

Amidst a Chig-infested planet, the 58th unit makes a strategic retreat alongside a tank driver from the US 7th Cavalry, operating a tank called "Pearly." During their journey, they meet the quirky Major Cyril MacKendrick, the last survivor of a battalion from the British Coldstream Guards. In a twist of fate, Wang comes face to face with a Silicate of the same type that had previously tormented him.