Here's the Iran-war playbook for investors as the conflict drags on

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• The US-Iran war has jolted markets, with stocks falling and oil and bond yields rising.
• There are a few ways to steer through the volatility, market pros told Business Insider.
• Tips include avoiding the rush into "war stocks" and increasing cash allocation.

Don't panic.

That's the first rule investors should follow when considering how to invest when chaos strikes, and the Iran war is no different, market pros told Business Insider.