Obama says the deal makes it possible for Iran to rejoin the global economy through increased trade and investment, creating jobs and opportunities for Iranians to sell their goods around the world.
Obama says the U.S. Still has "profound differences" with Iran, but he says the fact that the countries are talking regularly for the first time in decades could help solve them.
Obama addressed the Iranian people in his annual video message marking Nowruz (noh-ROOZ'), the Persian New Year.