Warrior queen supreme LUCY LAWLESS busted for defending the planet!

New Zealand cops arrested actress Lucy Lawless best known for her sword wielding activism as “Xena, Warrior Princess” and “Spartacus”.

They also arrested five other Greenpeace activists, four days after they climbed onto an oil-drilling ship to prevent it from leaving a New Zealand dock.

Police removed the protesters from their perch atop a 174-foot drilling tower on the Noble Discoverer in Port Taranaki.

Chartered by Shell, the oil company, the vessel had been slated to drill five exploratory wells in the Arctic.

Lawless and six activists climbed the tower early Friday to stop the ship's departure and raise awareness about Arctic oil drilling.

“I've got three kids. My sole biological reason for being on this planet is to ensure that they can flourish, and they can't do that in a filthy, degraded environment," Lawless told AP. "We need to stand up while we still can."

Tweeting from atop the tower before her arrest, Lawless said, "I found last night pretty darn scary — Not for sissies."