That only applies to hostilities between the Contracting Parties; most of the drone strikes haven't even been against other countries, but independent militarized groups.
The US and Pakistan are Contracting Parties. Carrying out drone strikes against citizens of one of those parties constitutes hostility against that nation in my book. I'd wager to say that if Pakistan would carry out drone strikes on US soil, the US would count that as an act of war on the side of Pakistan.
Exactly. What would happen if Turkey kills Gülen with a drone strike in the US? Or China kills Falun Gong followers with drones in the US? I'm rather sure US would not follow their own line on drone strikes.
