I see your point. Anyway, I don't think that NATO by itself adds a significant amount of expenses on top of the national, "non-NATO" military expense of the par

I see your point. Anyway, I don't think that NATO by itself adds a significant amount of expenses on top of the national, "non-NATO" military expense of the participants. Regarding Trump, IIRC he already changed his mind about NATO being obsolete, the point now is "just" that the allies should spend more.