US-Iran crisis: what we know so far

The US state department has issued a "worldwide caution" for Americans, saying the conflict between Israel and Iran could put those travelling or living abroad at an increased security risk. Vice-president JD Vance had insisted the US was "not at war with Iran, we're at war with Iran's nuclear programme" while US secretary of state Marco Rubio said that that the US was "not looking for war in Iran". US president Donald Trump has brought up the possibility of regime change in Iran following US military strikes against three of its key nuclear enrichment sites over the weekend, even as…