Donald Trump warned that it would be “very bad” for Chinese president Xi Jinping and Russian president Vladimir Putin if China or Russia were to arm Iran. The warning highlights concern over the possibility of outside powers increasing Iran’s military capacity amid wider international tensions.

The article, as provided, does not include details of when or where Trump made the remarks, what support he believes China or Russia could provide, or what consequences he envisaged. It names Xi and Putin directly, framing the issue as a potential escalation involving three major powers.