What is molniya?

Some articles on molniya:

Molniya (explosive Trap)
... were booby-trapped with an explosive device known as Molniya ("lightning") ... They were booby-trapped with "Molniya" ...
Molniya-M - Variants
... There were four main variants of the Molniya-M, which varied in terms of their upper stage ... The Molniya-M/2BL, used to launch Oko missile defence spacecraft, had a Block 2BL upper stage, The Molniya-M/ML had a Block ML upper stage, and the Molniya-M/SO-L had a Block SO-L stage ...
Molniya-M - Retirement
... The Molniya-M/ML was scheduled to be the last variant to fly, with two launches of Molniya spacecraft scheduled to occur in 2008, however they were ... The Molniya-M was believed to have been retired on 23 October 2007 after launching an Oko spacecraft, however this later proved to have been incorrect, when a Molniya-M was used to launch another Oko satellite ...