. "The walker's earliest known use was during the Battle of Reytha in 130 ABY under the Fel Empire. It supported the larger AT-AT walkers. Later in 137 ABY, these were used on Ossus."@en . . . . "Sith Imperial walker"@en . "The walker's earliest known use was during the Battle of Reytha in 130 ABY under the Fel Empire. It supported the larger AT-AT walkers. Later in 137 ABY, these were used on Ossus."@en . .