The Yuuzhan Vong were introduced as the main antagonists of the book series "The New Jedi Order" (1999–2003) depicted as an extragalactic, technophobic, fanatically religious species who were intent upon conquering the galaxy, which they attempted during the Yuuzhan Vong War (25–29 ABY). They were both invisible to direct Force sight and unaffected by direct Force powers. The Yuuzhan Vong used biotechnology instead of mechanical technology. Their homeworld was at first in a different galaxy and was called Yuuzhan'tar, which was destroyed in the Cremlevian War. Some went to a seed that was produced from the ashes of Yuuzhan'Tar which was first seen by people in the Unknown Regions and was called Zonama Sekot. Others went to Coruscant, which they renamed Yuuzhan'tar upon conquering the planet in 27 ABY, ending the New Republic.