My memory is that Lugansk is a shipbuilding city, similar to Virginia beach in the US. Correct?
My prayers are with you, your family, and your countrymen.
It is a sad time.
Gwjack
Luhansk (as it is usually transliterated from Ukranian Cyrillic) is inland and is in coal and steel country. Alchevsk has a huge chemical plant and a huge steel mill which managed to stay in operation all the way through the break-up of the Soviet Union and is still in operation today.
Lugansk is northeast of Donetsk and relatively close to the Russian border. Smaller Alchevsk is a bit to the west of Lugansk.