Any jamming attempts would have to be localized within a certain radius. Jamming an entire country's worth of area is probably untenable unless you are a really

Any jamming attempts would have to be localized within a certain radius. Jamming an entire country's worth of area is probably untenable unless you are a really small country. Even then you could e.g. route communications across the border with a meshnet and then shoot them up to Starlink in a location that isn't being jammed. This is the castle and invader problem; the castle builders must guarantee that there is no hole anywhere in the castle, and the invaders only have to find or make one hole to render the castle useless. Whereas you could cut an underwater cable and guarantee outages for at least a few days or weeks, an adversary only needs to move to an un-jammed area in order to resume communication with the greater world.