Russian President Vladimir Putin says his country is ready to “immediately” extend the New START nuclear arms control treaty “without any preconditions” by the end of the year.

A Russian state company suspended a research project with Iran because of its decision to resume enriching uranium, a move a senior official said Thursday was necessary after the U.S. canceled a waiver to allow the joint venture.

Turkish President Recep Tayyip Erdogan has confirmed that Ankara dropped its objection to a NATO plan to bolster the defense of Poland and the Baltic states, adding that it now expected the allies’ support in its fight against terrorism.