While officials have long said that Iran would be able to compete in the United States, it has not been until very recently that any final concerns have been laid to rest.
Even once their participation was beyond doubt, politics have dominated the build-up to Iran's World Cup campaign.
Until this week, the host nation, the United States, had been at war with Iran.
An agreement to halt hostilities and reopen the Strait of Hormuz was only announced on Sunday.
Members of their staff have not been granted visas for the US, while they have had to train in Mexico instead of their originally-planned base in Arizona.
Once the game started, though, the focus was firmly on the football as one of Asian football's heavyweights were an imposing presence from the off, with the attacking talent of Taremi a particular threat.
They played slick, well-drilled football in the final third and showed a constant sense of urgency as they took an attacking-minded game to New Zealand.
With New Zealand also toiling relentlessly for a winner and the partnership of Just and Wood producing chances, the game made for an exciting contest.
Iran racked up 17 shots, and New Zealand 14, but neither were able to find a winner.