What would happen to the Bitcoin network if the internet connection between continents sever temporarily?

Let's say the internet connection will be (intentionally or unintentionally) cutoff between USA/Europe/Asia.

There would be 3 different Bitcoin networks, where each network has its own nodes and miners.

Each network's miners will keep on mining the blocks of its own network and creating a new chain.

During the time the internet connection is cutoff, each network will have its own transactions made.

After a certain time, lets say a week, the internet connection between the continents resumes.

Then all of other networks will default on the network with the longest chain.

That means that all the transactions that were made in the other networks during that time don't have any record on the main chain.

Isn't that a huge risk to the bitcoin network as a trusted global ledger?

Shouldn't we prepare some type of a conduct protocol in case something like this happens?

Do we, as the bitcoin protocol network participants, have any way to secure the network in more global ways, connecting the continents, perhaps with P2P satellite connections, or any other way, sharing the longest chain with each other, to make sure we keep all continents connected to the same longest chain, and preventing multiple chains from happening?

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Thank you