Moore was one of four experts interviewed for a program of the BBC World Service. The episode on "The Inquiry" explored the strength of the North Atlantic Treaty Organization in light of war in Ukraine and threat of conflict in the Baltics. The analysis ran Feb. 15.
One of the other experts included in the interview was Anders Fogh Rasmussen, who led NATO until recently.
On the program, Moore argued that NATO embraced a new political mission after the collapse of the Soviet Union but has struggled with its identity in more recent years.
Part of the reason for that struggle, she said, is NATO’s size. The number of alliance members has jumped from 16 to 28 since the end of the Cold War.
“I would say that there is perhaps a lack of a really common vision as to what the alliance's ultimate political purpose is,” she said.
There is also a debate whether NATO should stick to its original mission – to defend the borders of Europe – or take on a more global role.