The parties also "discussed specific issues regarding the implementation of the mutual understanding reached during the meeting of high-ranking Russian and US officials on February 18 in Riyadh. Sergey Lavrov and Marco Rubio agreed to maintain contact." MOSCOW, March 16. /TASS/. US Secretary of State Marco Rubio called Russia's top diplomat Sergey Lavrov and informed him about the US decision to launch a military operation against the Houthis in the Red Sea region; Lavrov responded by