You could apply for funding from a charity to get a copy of the Internet Archive. The IA is making incomplete copies including search function available in form of a container containing several 19" racks called the Petabox: https://archive.org/web/petabox.php

This is still useful after the conflict is over, as rebuilding infrastructure can take decades, and the container could be beneficial if hosted e.g. by a school.

You could create a mesh network that links local organisations to the Petabox without being initially connected to "the" Internet.

In any case, I wish you personally well and peace to your country!