Trump says agreement with Iran will take time

US President Donald Trump said reaching an agreement with Iran will take time, pushing back against critics who have urged his administration to move more quickly.

Speaking to NBC, Trump said negotiations and efforts related to Iran were advancing rapidly despite the complexity of the situation.

“We are only in the third month of operations compared to the 19-year Vietnam War,” Trump said.

He added that dealing with Iran “will take years”, arguing that Tehran has spent decades confronting the United States and has grown accustomed to dealing with what he described as “weak and ineffective” American and Western leaders.

Trump also suggested that Iran ultimately has no choice but to engage in the process.