Saul summoned the people, and numbered them in Telaim, two hundred thousand footmen, and ten thousand men of Judah.
"Saul numbered the people  ... at Telaim"  (1 Samuel 15:4).  This appears to be the same place as Telem  (Joshua 15:24) in the land of Judah in southern Israel.  That part of Israel was closest to the territory of the Amalekites.