Differing objectives between Israeli Prime Minister Netanyahu and US President Trump are evident following recent Israeli strikes, leading to escalations with Iran and Hezbollah.

Israel’s latest strikes on Lebanon and Iran have made clear that US President Donald Trump and Israeli Prime Minister Benjamin Netanyahu, who started the war in lockstep, want different things. Trump had publicly warned Israel not to strike Beirut in its war with Iran-backed Hezbollah militants. When it did, on Sunday, Iran responded by firing ballistic missiles at Israel for the first time since the April ceasefire. Israel then struck Iran, with which Trump has been engaged in weeks of...