What is the outcome of Macbeth conflict with banquo and fleance?

In William Shakespeare's play "Macbeth," the conflict with Banquo and Fleance poses a significant threat to Macbeth's reign. The witches' prophecy that Banquo's descendants will become kings creates paranoia and insecurity within Macbeth. He sees Banquo as a potential rival and orders his assassination along with his son, Fleance.

However, the attempt on Banquo's life is only partially successful. Banquo is killed, but Fleance manages to escape. This turn of events deepens Macbeth's dread and guilt. He becomes haunted by visions of Banquo's ghost and descends further into madness.

The failure to eliminate Fleance also leaves a lingering threat to Macbeth's line. Fleance's survival means that the witches' prophecy can still be fulfilled, and it casts doubt on the security of Macbeth's throne.

In conclusion, Macbeth's conflict with Banquo and Fleance results in the death of Banquo but allows Fleance to escape. This creates a lingering sense of uncertainty and danger for Macbeth, as it keeps alive the possibility of a future challenge to his rule.