There's fears of escalation between India and Pakistan among experts.
Pakistan claims Indian missile attacks have killed eight people - and India's claiming three died when Pakistan shot down five of its planes.
Auckland University Global Studies Professor Chris Ogden says both countries have nuclear weapons.
He says that could actually be beneficial.
"It might actually enhance the possibility for a limited war - this happened back in 1999, when both sides were testing weapons in 1998."
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