Russia, Armenia's foreign ministers to meet on January 21 -- Foreign Ministry / Armenia justifies treaty with US by 'complex international situation' / Relations between Russia and Armenia are not easy at this stage -- Lavrov / Armenia's top diplomat may visit Russia soon -- Lavrov / Putin offers to mediate talks between Azerbaijan and Armenia on visit to Baku / Russia still ready to facilitate reconciliation between Armenia and Azerbaijan -- diplomat / Azerbaijani, Armenian foreign ministers to meet in Almaty May 10 / UN secretary general urges Azerbaijan, Armenia to normalize relations / Armenia's relations with Russia not at their highest -- top diplomat / Kazakhstan ready to host Armenia-Azerbaijan talks, says president