More than 100 Turkish lawmakers, many of them opposition Islamists, have petitioned the country's constitutional court to try and stop Ankara's planned deployment of some 90 commandos to Afghanistan.
The lawmakers say parliament's approval for sending those special forces soldiers to assist the campaign against terrorism was unconstitutional.
Polls in Turkey show that an overwhelming percentage of Turks surveyed do not support the Afghanistan deployment decision, or the ongoing military campaign against terrorists and the Taleban rulers there. Turkey's decision to send troops came after the United States requested Ankara's assistance.
A similar challenge against Turkish troop deployment was mounted in 1990 before the start of the Gulf War against Iraq. It was rejected by the constitutional court, the highest judicial body in Turkey.