The Orcs produced by the former threaten the safety of Waterdeep City to the north and invade Baldur's Gate to the south.
The Orcs produced by the latter, more than a decade later, surged out under the leadership of a tribe called the Multiple Arrows Tribe, and established an Orc Kingdom named Dark Arrow near the Silvermoon Alliance, considered the greatest threat by the Silvermoon Alliance.
Just like how Devils and Demons would start fighting upon meeting, the Hobgoblins and Orcs, both being monster races of the wilderness, have a negligible potential for peaceful coexistence. More often, they compete for survival resources, enslaving or driving each other to extinction.
This characteristic also restrains each other, slowing their development in the wilderness.
