The country, which had previously been reluctant to intervene, has launched raids against IS in Syria and Kurdish PKK guerrillas in northern Iraq.
The strikes followed a wave of attacks by militants on Turkish soil.
Turkey, a key Nato member, called Tuesday`s meeting of the North Atlantic Council under Article 4 of the alliance`s founding treaty.
The clause allows members to request a summit if their territorial integrity or security is threatened.
It`s only the fifth time in the alliance`s history that a member state has requested such a meeting.
It will give Turkey`s Nato allies the opportunity to work out Turkey`s goals and motivation the country has stood on the sidelines fo the Syria conflict for so long, says the BBC defence correspondent Jonathan Beale.
It will also offer a chance to hear about US and Turkish plans to set up a buffer zone, free of Islamic state fighters, in northern Syria.
Kurdish unrest
Turkey is struggling with more than 1.8 million refugees from the Syrian conflict. On 20 July IS-linked militants killed 32 people in the Kurdish-majority town of Suruc, near the Syrian border.
The crisis has exacerbated tensions in a part of Turkey where a conflict between the outlawed Kurdistan Workers` Party (PKK) and government troops has killed about 40,000 people since 1984.
The PKK claimed an attack which killed two Turkish police officers on Thursday. It said it was in retaliation for the Suruc bombing and what the group sees as Turkey`s collaboration with IS.
Turkish operations in Syria have also led to tensions with Kurdish militia forces fighting IS in northern Syria.
On Monday Kurdish People`s Protection Units (YPG) said Turkish tanks had shelled their positions near the Syrian town of Kobane.
A Turkish official said recent operations sought "to neutralise imminent threats to Turkey`s regional security" and were targeting IS in Syria and the PKK in Iraq.
"We are investigating claims that the Turkish military engaged positions held by forces other than [IS]," the official said.
Kurdish forces within Syria, he added, remain "outside the scope of the current military effort".
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