President Donald Trump picked a fight with Spanish Prime Minister Pedro Sanchez over his opposition to the invasion of Iran — but Sanchez isn't backing down.According to The Guardian, Sanchez "responded to Donald Trump’s extraordinary threat to cut off all trade with Spain over his government’s refusal to facilitate the US’s ongoing attacks against Iran, comparing the growing conflict in the Middle East to playing 'Russian roulette with the destiny of millions'. Sánchez, who has been one of the most vociferous European critics of Israel’s conduct in Gaza, said his government’s position on the widening instability could be summed up in three words: 'No to war.'”Last night, Trump issued his threat at a White House event, blasting Spain as "terrible," telling an aide to "cut off all dealings with Spain," and bragging that he can use Spanish military installations to strike Iran whether or not Spain allows it.Sanchez's speech, however, makes clear he is undeterred.“You can’t play Russian roulette with the destiny of millions ... Nobody knows for sure what will happen now," said Sanchez. "Even the objectives of those who launched the first attack are unclear. But we must be prepared, as the proponents say, for the possibility that this will be a long war, with numerous casualties and, therefore, with serious economic consequences on a global scale.”So far, U.S. and Israeli operations in Iran have taken out the country's longstanding Supreme Leader, Ayatollah Ali Khamenei.According to reports, Trump was persuaded to take action by his close Senate ally, Rep. Lindsey Graham (R-SC), who has consistently favored strong military aggression against American adversaries.