Prime Minister Mark Carney said Iran acted irresponsibly after attacks on commercial shipping and regional targets during what had been a period of de-escalation following the death of Iran's Supreme Leader.

Speaking on his way to the NATO Summit in Ankara, Carney stated that the United States responded appropriately with military strikes intended to halt further aggression and help restore the ceasefire.He described the ceasefire as fragile and emphasized that Iran's actions undermined efforts to reduce tensions in the region.

The renewed conflict followed reports that Iran attacked commercial vessels in the Strait of Hormuz, including a Qatari liquefied natural gas carrier and a Saudi oil tanker, prompting a U.S.military response.

NATO Secretary-General Mark Rutte supported the American strikes, arguing they were necessary because Iran had violated the ceasefire and reiterating that Iran must never obtain nuclear weapons while stressing the importance of maintaining freedom of navigation through the Strait of Hormuz.However, not all NATO allies shared the same view.Belgian Prime Minister Bart De Wever questioned whether the U.S.operation had been properly planned, while leaders from Lithuania and the Netherlands emphasized the need to continue pursuing a diplomatic solution despite expressing solidarity with the United States.

The escalating Middle East crisis overshadowed the NATO Summit, where leaders had intended to focus on increased defence spending and burden-sharing within the alliance.U.S.

President Donald Trump declared that, in his view, the ceasefire was effectively over, sharply criticized Iran's leadership, and expressed frustration that several European allies had declined to participate in military operations.Nevertheless, he indicated that negotiations with Iran could continue through diplomatic channels.