Will the fear and uncertainty about the mystery drone sightings enhance the narrative that the U.S. is under attack, especially if this leads to tidal power outages causing real damage? Will this increase the likelihood of an unwarranted military reprisal by the U.S. to worsen global tensions?

The circumstances described in your question may all play out, at least as a worst-case scenario, because this is precisely what the interlopers are aiming for. They are announcing something sinister is going on. That always gets fear going and the uncertainty of what is behind it gets accusations flying and theories spun up and these will be exaggerated and spawn additional theories, and these narratives will be easy to reinforce and add to ongoing manipulation through mind control. The more the public is rattled, the more government will feel pressure to do something even when they have no clear target they feel confident is to blame for a grievance. But given so much bad blood among nations it is easy for a false assumption to push things over the edge and trigger a military strike of some kind. As you know, such decisions are always dangerous because things can become unpredictable. If such provocation is countered in force by an indignant but innocent party, that will likely be misconstrued as them being a fierce enemy and further proof of bad intentions. This is how shooting matches get going. So time will tell how much mayhem the interlopers can engineer with what is already underway. It will be an increasing drumbeat from here on out to reach the climax desired to set the world up for the Alien Disclosure rescue by their Trojan horse deception.