BREAKING: Russian Attack Choppers Enter American Territory, Obama Responds Pitifully According to recent reports, Russian nuclear bombers have conducted at least 16 incursions in to Northwestern United States air defense identification zones over the last week and a half. United States officials claim that this is a sharp and distinct increase in aerial penetrations. The increase comes at a time when there are heightened tensions between the United States and Russia over Ukraine. The incidents have caused United States jet fighters to take guard several times, although we arent hearing much about it. 