No, official website, an experimental senior high school in Bijie City, inquired that the "national defense class" in Bijie Experimental Senior High School is the first "national defense class" founded by the military division and Bijie Education Bureau, and it belongs to a characteristic class. Therefore, the national defense class in Bijie Experimental High School is not a key class. The "national defense course" aims to improve students' national defense literacy and train excellent reserve soldiers and non-commissioned officers for the country by carrying out national defense characteristic courses and military and political theory courses.