Saul summoned the people, and numbered them in Telaim, two hundred thousand footmen, and ten thousand men of Judah.
We cannot leave this without stressing the fact that God knew what He was doing when He ordered the destruction of the Amalekites.  It was one of them, Haman, a descendant of King Agag, who in the times of Esther plotted the destruction of all the Jews on earth, a plot which required the intervention of God Himself to frustrate it.