Board Thread:Character Discussion/@comment-26340222-20151018144756/@comment-11468987-20151018153624

The people of Camelot accepted Arthur as his king because he had Excalibur. However, he cannot let anyone see the sword because it is broken. Arthur is worried that if anyone finds out the sword is broken, they will no longer believe he is the rightful king of Camelot. In 5x02, Arthur says something to Guinevere about needing to make Excalibur whole. He says if they don't, they will lose everything. I think making Excalibur whole is just about him keeping his power as king.