“obligation of aid and assistance by all the means in their power”. Which is far above what being in NATO requires states to do. Which just btw also covers Greenland. Only ones off the hook are Ireland and Austria due to being neutral, the treaty still covers them though.
You should read Article 42.
“obligation of aid and assistance by all the means in their power”. Which is far above what being in NATO requires states to do. Which just btw also covers Greenland. Only ones off the hook are Ireland and Austria due to being neutral, the treaty still covers them though.