Then the Lord raised up an adversary against Solomon, Hadad the Edomite; he was of the royal house in Edom. […] When Hadad heard in Egypt that David slept with his ancestors and that Joab the commander of the army was dead, Hadad said to Pharaoh, 'Let me depart, that I may go to my own country.' […] God raised up another adversary against Solomon, Rezon son of Eliada, who had fled from his master, King Hadadezer of Zobah. He gathered followers around him and became leader of a marauding band, after the slaughter by David; they went to Damascus, settled there, and made him king in Damascus. He was an adversary of Israel all the days of Solomon, making trouble as Hadad did; he despised Israel and reigned over Aram. Jeroboam son of Nebat, an Ephraimite of Zeredah, a servant of Solomon, whose mother's name was Zeruah, a widow, rebelled against the king. […] Solomon sought therefore to kill Jeroboam; but Jeroboam promptly fled to Egypt, to King Shishak of Egypt, and remained in Egypt until the death of Solomon. (NRSV 11:14, 21, 23-26, 40)
And the Lord stirred up an adversary unto Solomon, Hadad the Edomite: […] And when Hadad heard in Egypt that David slept with his fathers, and that Joab the captain of the host was dead, Hadad said to Pharaoh, Let me depart, that I may go to mine own country. […] And God stirred him up another adversary, Rezon the son of Eliadah, which fled from his lord Hadadezer king of Zobah: And he gathered men unto him, and became captain over a band, when David slew them of Zobah: and they went to Damascus, and dwelt therein, and reigned in Damascus. And he was an adversary to Israel all the days of Solomon, beside the mischief that Hadad did: and he abhorred Israel, and reigned over Syria. And Jeroboam the son of Nebat, an Ephrathite of Zereda, Solomon's servant, whose mother's name was Zeruah, a widow woman, even he lifted up his hand against the king. […] Solomon sought therefore to kill Jeroboam. And Jeroboam arose, and fled into Egypt, unto Shishak king of Egypt, and was in Egypt until the death of Solomon. (KJV 11:14, 21, 23-26, 40)
Despite Solomon's shrewd politicking, there were still a few problems that he was unable to marry, buy, or assassinate his way out of. His failure to take care of these three troublemakers left Israel in a weakened state when Rehoboam inherited it. If a politician leaves office (or dies, as in this case) right before his constituents start a civil war, was he effective?