REUTERS

Germany's defense minister Ursula von der Leyen called for the alliance for a limited time to combat the militants in a commentary in an advance copy of the Bild newspaper due out on Monday, Reuters wrote.

She said the aim of what she called a "special purpose" alliance was to "weaken ISIS, to limit its freedom for maneuver, to destroy its training camps, to win back city by city, destroy its oil revenue and break the aura of invincibility."

Germany's troops plan, which still needs approval from parliament and was outlined by Germany's Chief of Defense Volker Wieker in Bild am Sonntag, does not include direct involvement in the coalition's air offensive.

In Germany, the public still dislikes sending forces overseas except for in peace missions, in part due to memories of Nazi militarism.