Jabesh GileadJabesh Gilead - King Saul's first campaign as king was a successful one.  It came against the Ammonites.

 

"Now Nahash the Ammonite came up and besieged Jabesh-gilead; and all the men of Jabesh said to Nahash, 'Make a covenant with us and we will serve you.'  But Nahash the Ammonite said to them, 'I will make it with you on this condition, that I will gouge out the right eye of every one of you, thus I will make it a reproach on all Israel.' (I Samuel 11:1-2, NASB)

 

Needless to say, the elders of Jabesh-gilead rejected the offer and held out while they dispatched messengers to Saul.  King Saul rallied Israel and marched on the city to relieve the siege.

 

"He numbered them in Bezek; and the sons of Israel were 300,000, and the men of Judah 30,000.  They said to the messengers who had come, 'Thus you shall say to the men of Jabesh-gilead, "Tomorrow, by this time, the sun is hot, you will have deliverance."'  So the messengers went and told the men of Jabesh; and they were glad.  Then the men of Jabesh said, 'Tomorrow we will come out to you, and you may do to us whatever seems good to you.'  The next morning Saul put the people in three companies; and they came into the midst of the camp at the morning watch and struck down the Ammonites, until the heat of the day.  Those who survived were scattered, so that no two of them were left together." (I Samuel 11:8-11, NASB)