You don't. You buy a $200 beater laptop and use that for travel. Load only what is necessary to remote back into your network. Don't carry any other data on it.
If it gets stolen or searched, no loss. Just buy the cheapest thing you find at an electronics store at the destination.
My old org kept a bunch of used thinkpads for this purpose. International travelers were prohibited from taking their work devices, just a loaner and a Remote Desktop client.