Iran's President Hassan Rouhani said on Saturday it would adhere to commitments under its 2015 international nuclear agreement, signed with six world powers to limit its disputed nuclear program.
The Iranian nutballs like the deal because it gives them what they want: nukes and money.
Really, one reason Iran wanted nukes was to escape sanctions and isolation. With nukes, Iran could hope that the prestige and threat of owning nukes would erode the willingness of states to sanction and shun Iran, thus providing money.
The Iran deal's only significance is that it reversed the order of success. Iran got the pallets of cash and abandonment of sanctions to get money first, with the nukes coming later.
The nukes are achieved under cover of the deal that should prevent anybody from attacking them while the Iranians continue research away from prying eyes restricted to safe sites under the deal (and let's not even begin to talk about the North Korea route for Iran to buy nukes with the money the deal provided Iran).
So, duh, of course Iran defends the deal. They're Shia Islamist nutballs--not stupid.