Turkey will be allowing the United States and coalition forces to use its military bases in the fight against Islamic State, and has also agreed for moderate Syrian rebels to be trained on its soil.
Although Turkey has so far refused to send troops into Syria, MPs voted to allow foreign forces to use its bases for activities in Syria and Iraq.
The development was announced by US National Security Adviser Susan Rice, although Turkey is yet to to publicly confirm the news.
An American military team is set to to travel to Ankara this week to discuss the training programme and determine possible missions that the bases could be used for.
See more on BBC News.