Benjamin Netanyahu bet that his joint war alongside Donald Trump would topple Iran's clerical rulers and bolster himself ahead of elections at home, as the architect of a US-Israeli alliance that would reshape the Middle East.
Instead, Israel's longest-serving prime minister is on a collision course with Trump as the US president seeks to extricate himself from the war.
Amid news of a deal to end the war, both men's goals remain unmet while Israeli military operations are tied down in Lebanon.
Israeli officials have been cautious in public for fear of angering their most important ally. But in private conversations, the frustration is clear. The preliminary agreement is "terrible for Israel," said one senior Israeli official