If trump wants greenland patrolled, but doesn’t want to pay for it if he doesn’t

If trump wants greenland patrolled, but doesn’t want to pay for it if he doesn’t have to, or at least, wants to preserve his resources, and provide time to build up defenses, and what if nato really is a dead weight, then what strategy would he use to provoke others into achieving his goals for him both at present and over time.

This is how thinks.