While not a member, Ireland is still a NATO partner and an EU member state. It's also not up to Ireland to police the Mediterranean sea. That's the job of the 21 bordering nations under the regional legal framework known as the Barcelona Convention.
I know you were making a joke, but hundreds of humanitarian activists have been illegally detained in international waters. Previously, Israel has beaten and tortured detainees including Greta Thunberg, who spoke publicly of her ordeal.
