Complex sentence: The game is set years after the events of "Warlords of Draenor" and takes place in the Broken Isles, an island chain near the Maelstrom in the middle of the Great Sea.
Split into simpler sentences: The game is set years after the events of "Warlords of Draenor" within the Broken Isles. The Broken Isles are located near the Maelstrom in the middle of the Great Sea.