On 17 April, Iran's Foreign Minister Abbas Araghchi declared the Strait of Hormuz "completely open" for all commercial vessels (through the Iran-controlled corridor) for the remaining days of the ceasefire. President Trump voiced optimism about a deal in interviews to reporters on 16 April. He said Iran agreed not to acquire a nuclear weapon and that the agreement that was currently being negotiated “goes beyond 20 years.” He said the prospects for a deal with Iran were “looking very good,” adding that the next meeting with the Iranian delegation could take place during the weekend.
A Pakistani diplomat told Reuters that backchannel diplomacy via Pakistan is ongoing, with a possibility that the next bilateral meeting between the U.S. and Iran involves the signing of a memorandum of understanding, an agreement on principles, before the technical points are agreed upon.
Israel and Lebanon also agreed to a ceasefire lasting 10 days that went into effect on 16 April at 5:00 pm ET. The two countries held in-person talks in Washington, DC on 14 April for the first time in 34 years, brokered by Secretary of State Marco Rubio. President Trump also announced the invitation of Israeli Prime Minister Benjamin Netanyahu and Lebanese President Joseph Aoun to the White House as part of a peace push. Of note, the Israel–Lebanon joint statement's preamble included a tacit end to the mutual state of war that has existed since 1948: "Israel and Lebanon affirm that the two countries are not at war," stating that the two countries will continue direct negotiations toward a formal peace agreement.
Much like the November 2024 ceasefire agreement, this deal allows Israel to maintain its buffer zone (around 8% of Lebanese territory) and allows it to conduct "all necessary measures in self-defense, at any time, against planned, imminent, or ongoing attacks." On 17 April, Israel’s defense minister, Israel Katz, said that Israel’s goals for its war against Hezbollah, namely the demilitarization of southern Lebanon, had yet to be realized and would need to either be accomplished diplomatically or through a resumption of fighting after the ceasefire.
The Israel–Lebanon ceasefire is as much about the Iran negotiations as it is about Lebanon. Iran has maintained that a ceasefire in Lebanon is a precondition to progress on talks with the U.S. In this light, the Lebanon ceasefire can be seen as calling Iran's bluff. With this obstacle removed, it will now be clearer if there is room to settle the nuclear issue diplomatically.