White House says President Trump will meet his Ukrainian and Syrian counterparts during the NATO summit, while allies face pressure to raise defence spending.
The International Organization for Migration has warned that Sudan's Al Obeid could face the same fate as Al Fasher if attacks by the paramilitary RSF continue.
Parliament speaker Ghalibaf says talks with Washington stalled after tit-for-tat strikes, but insists the memorandum text now includes protections for allied territories and forces.