Bersatu president Muhyiddin Yassin has welcomed Johor ruler Sultan Ibrahim Sultan Iskandar's olive branch to the federal government.<br /><br />However, the home minister said for the strained ties to heal, the monarch must also admit to having caused unease.<br /><br />Sultan Ibrahim earlier today called for dialogue with the federal government in order to settle their differences.<br /><br />This is after Prime Minister Dr Mahathir Mohamad yesterday said the Johor and Terengganu constitutions were nullified when Malaya was formed.