Who pays for NATO?
There is no NATO army. National forces are under national command. When called upon, Allied nations volunteer their troops, equipment or other capabilities to NATO-led operations and exercises. Each member state pays for its own armed forces, and covers the costs of deploying its forces. But together, the Allies get a lot more security for a lot less cost than they would if they had to do it alone. Each member contributes a small percentage of its national defence budget to NATO.