The US has asked Ukraine for help defending Gulf allies against Iranian drones, according to President Volodymyr Zelensky.
He said Ukraine's partners had been reaching out and there had been "requests from the American side".
Zelensky said he had given instructions "to provide the necessary means and ensure the presence of Ukrainian specialists who can guarantee the necessary security".
Asked about the Ukrainian offer, US President Donald Trump said: "I'll take any assistance from any country."
Earlier Zelensky had made clear Ukraine would help on condition that its own defence was not weakened and that there were diplomatic gains for Kyiv.
He suggested, in particular, that Ukraine would be willing to swap its interceptor drones for more US Patriot air defences to protect against Russian ballistic missiles.
He has spoken to counterparts across the Gulf - in the United Arab Emirates, Qatar, Bahrain, Jordan and Kuwait - and is promising what he calls "concrete steps" to help them defend their military bases and civilian infrastructure from Iranian attack.
Ukraine has for years been subject to strikes by Russian-made Shahed drones - one-way unmanned aircraft based on an Iranian design.
The US has ceased direct military support under his administration but continues to provide vital intelligence that helps Ukraine both defend against drones and missiles, and strike targets deep within Russia.
