When the tribes of Joseph complained their allotment was too small, what did Joshua tell them?

Answer: Clear the forest for land

Joshua said, "If... the hill country of Ephraim is too small for you, go to the forest and clear for yourself an area."

“Joshua answered them, “If you have so many people that the hill country of Ephraim is too small for you, go to the forest and clear for yourself an area in the land of the Perizzites and the Rephaim.””— Joshua 17:15 (BSB)