(CNN) About four in 10 Americans support the US killing of Iran Gen. Qasem Soleimani, according to a new poll out from USA Today/Ipsos, but a majority of Americans also say the killing and its immediate aftermath have made the US less safe.

The poll was conducted Tuesday and Wednesday -- after the US attack on Soleimani, but as I ran launched missiles into Iraq, targeting military bases housing US troops. Many in the poll were fearful about future impacts of the strikes. Only a quarter of Americans think the killing made the US safer, including 10% of Democrats, 14% of independents, and 47% of Republicans.

Almost seven in 10 (69%) say the killing of Soleimani has made it more likely that there will be future Iranian attacks in the Middle East, and a majority who see terrorist attacks on the US more likely (63%), a US and Iranian war more likely (62%) and that Iran will be more likely to develop nuclear weapons (52%).

Americans are split on support for future airstrikes on Iranian military targets, 39% support and 38% oppose, but that lowers significantly when including cultural and world heritage sites (57% oppose, 22% support). President Donald Trump recently threatened the bombing of Iranian cultural and world heritage sites in a tweet. Republicans are split on the issue, with 42% opposed to targeting the sites and 39% support.

Over half of Americans (53%) support limiting "President Trump's ability to order military strikes or declare war without legislative approval," while around a third (36%) support Trump's current strategy with Iran. Around the same that want to limit Trump's military strikes also believe "Trump's behavior with Iran is reckless" (52%).

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