The Pleiadians are in alliance with other civilizations friendly to Earth, such as Arcturians, Lyrans and Yahyel. These civilizations help the Earth in a coordinated fashion and protect the solar system from intrusions by aggressive aliens connected with Orion, which includes Nordics, Reptilians, Draconians and Zeta Greys. Not all alien individuals from these races are negative towards humans, but the above named races are more frequently involved in aggressive and repressive activities against humanity.
The main agenda of the negative aliens is to take over control of the Earth and slow down our ascension. There are many galactic alliances that are friendly to Earth, and these alliances take care to protect us from such intrusions. The main friendly alliances are Galactic Federation of Light, Ashtar Command, Girk-Fitneer, The Council of Nine, Arcturian Council and Andromedan Council. Pleiadians are part of all these positive alliances.
In the old days, the presence of Pleiadians and other aliens on Earth was commonplace. In the ancient world, people would not be surprised by the aliens who walked on the streets and resided in temples. Nowadays, the Pleiadians visit the Earth in disguise, using technological adjustments of the body to look like humans. Some of them come simply to learn about our life, and others are secret operatives that actively engage in work on speeding up our progress. Such secret alien agents helping our progress are called Progressors.