Russian envoy invites US colleagues to visit Russia / Russia, Cyprus to resume mutually beneficial partnership -- Russian ambassador / Russian envoy's informal credential presentation due on March 27 -- US State Department / Russian ambassador Darchiyev to depart to US today -- TASS source / Russian ambassador to represent his country during Lukashenko's inauguration -- embassy / Russian ambassador plans to depart to US 'one of these days' -- ministry spokeswoman / UK expels Russian diplomat and spouse in tit-for-tat move against Moscow / Russia-Kazakhstan relations flourish, says Russian ambassador to Astana / Preparations for Putin's visit to India in full swing -- Russian ambassador / Russia values cooperation with Pakistan within SCO -- Russian ambassador