When was the last time you read RT.com? Approximately...
Never. The head of RT is on the record as being in favor of 'total control of information' by the government and is very much in favor of government censorship of the press so the only thing you'll find is the Russian government's position (easy to find in other places).
I would like to know the difference between Kosovo and Lugansk
The two are not similar at all...
Kosovo - the majority of people living there (ethnic Albanians) were tired of minority rule by a central Serbian government that had long oppressed them. Said central government was then gearing up for a campaign of genocide before they were stopped.
Luhansk (not Lugansk) - almost everybody living there are Ukrainians who found their area invaded by a foreign country (Russia) and then ruled by a puppet government installed by Russia which robbed them and ruined the place.
I've given you links that explain the situation and you clearly either didn't read them or were unable to understand them. Find the links, read them. Then either refute the information therein or admit you've been wrong. But stop playing dumb (unless... you really are.... hmmmm)