The neurons are full of ions, which can be set to move by electromagnetic waves just like electrons in antenas and thus create electric currents which can be imposed to the brain activity from outside. With the current knowledge of frequencies of different nervous activities, electrical impulses in the brain can manipulate human thoughts, emotions and in this way human behavior. American scientist Allan H. Frey in 1962 produced in volunteers perceptions of sounds by pulsed microwaves at a distance of 300 meters (see this). His experiment was many times replicated with the same result.
In 2012 Allan H. Frey published the article where he stated that further research in biological reaction on pulsed microwaves was classified by the U.S. government since it did not want advances in knowledge to appear in the scientific literature where the USSR could benefit from it.
In fact already in 1980 John B. Alexander, former director of Los Alamos National Laboratory, in his article “The New Mental Battlefield: Beam me up Spock“ on remote control of human brain’s activity, writes:
”whoever makes the first major breakthrough in this field will have a quantum lead over his opponent, an advantage similar to sole possession of nuclear weapons” and “…
there are weapon systems that operate on the power of the mind and whose lethal capacity has already been demonstrated… the ability to heal or cause disease can be transmitted over distance thus inducing illness or death for no apparent cause… The application of large-scale ELF (extra low frequency) behavior modification could have horrendous impact… mind-to-mind thought induction techniques are also being considered…” See this.
The USA and Russia have already built systems that can, by pulsing microwaves into the ionosphere in brain frequencies, produce powerful electric currents in those frequencies and as a result make the ionosphere to produce electromagnetic waves in the frequencies of the electrical activity of human brains and thus control the activity of human brains in large areas of our planet.
In 1999, when the American system HAARP was under construction, the European parliament passed a resolution on the system HAARP. In the resolution the European Parliament called
“on the European Union to seek to have the new ‘non-lethal’ weapons technology and the development of new arms strategies” and called “for an international convention introducing a global ban on all developments and deployments of weapons which might enable any form of manipulation of human beings” see this.