What are Archangels?

"Now, we pass on to the next group of Beings, to the Archangels — Archangeloi or Fire Spirits. These do not occupy themselves with separate men, with the single individual, but have a wider task; they bring single lives into harmonious order with the life of larger human groups, as, for instance, nations, races, etc. Within our earth's evolution the Archangels’ task is to bring into certain harmonious relationship each single soul with the national or race-soul. For those who penetrate into spiritual knowledge, the souls of races are something quite different from what they are for the lovers of the abstract in the science of to-day, or for present day culture in general. On a certain territory, (let us take Germany, France or Italy) live so and so many people, and because the physical eye sees only so many external human forms, such lovers of the abstract can imagine what is called the Soul of a nation or Spirit of a nation only as a comprehensive general idea of a nation. For the lover of abstractions the separate man only is real, not the soul of the nation, not the spirit of the nation. For one who truly sees into the inner working of spiritual life, that which is called the nation's soul or spirit, is a reality. In the soul of a nation there lives and weaves what we call a fire-spirit or an Archangel; he regulates, so to speak, the relation between separate men and the nation or races as a whole." [Rudolf Steiner, GA 110 The Spiritual Hierarchies and Their Reflection in the Physical World (Lecture 6)]