Boris Johnson and his Russian counterpart Sergei Lavrov have sparred over the issue of alleged Russian meddling in the Brexit referendum during the first visit by a British foreign secretary to Moscow for five years. Lavrov made the latest in a series of blanket Russian denials over interference in western votes, and said Johnson himself had said there was “no evidence of Russian interference in the Brexit referendum”. Dec. 22 https://www.theguardian.com/politics/2017/dec/22/boris-johnson-meets-russian-counterpart-sergei-lavrov-moscow
To understand what is really going on in this meeting between Lavrov and Johnson, we will look at the Davison Relationship Chart for Russia  and UK .
What is a Davison relationship chart?
The Davison relationship chart [DRC] was named for Ronald C. Davison (1914-1985), author and president of the Astrological Lodge of the Theosophical Society of London. The date and time can be determined by calculating the day that lies exactly between the natal charts of those involved. The same principle is also applied to the times of birth. If the individuals involved have different places of birth a combined "place of birth" is calculated by taking the average values of latitude and longitude.
Even if the combined place of birth is located in the middle of the Pacific Ocean, the DRC is still a concrete horoscope for a specific time, place, and location which can, like any natal chart, be used as a basis to calculate solar return charts, progressions and the effect of transits. http://wiki.astro.com/astrowiki/en/Davison_Relationship_Chart
The beauty of the DRC is that it allows for progressions and transits. Here I will focus on the Mercury station direct (23 Dec.) square Neptune that triggers the combination shown in the DRC. The interpretation for the combination is given below:
Pluto-Mercury-Neptune- Poseidon: (-) Belief in a lie or denials, excuses and deceptive ideas are used to manipulate others; (+) openness to new ideas creates radical change.
Pluto-Admetus-Neptune: (-) to use deception to handle a “check-mate”;(+) to admit self-deceit as realities finally become apparent in a long standing problematic situation.