"U.K. Prime Minister Boris Johnson paid a surprise visit to Kyiv on Saturday to meet with Ukrainian President Volodymyr Zelensky "in a show of solidarity with the Ukrainian people," British and Ukrainian officials said.
Driving the news: "They will discuss the UK’s long term support to Ukraine and the PM will set out a new package of financial and military aid," Johnson's office said in a statement, CNN reports.
"Right now Boris Johnson's visit to Kyiv began with a tete-a-tete meeting with President Zelensky," Zelensky aide Andrij Sybiha wrote on Facebook.
"Great Britain leader in defense support of Ukraine. The leader in the anti-war coalition. Leader in sanctions on Russian aggressor," Sybiha wrote."
http://www.axios.com/boris-johnson-ukraine-zelensky-2283122f-3d5a-487a-91df-95eb62d81f5b.html
Also means the SAS will be there too.