Of Long Duration Anguish is the second album by Estonian death metal band Aggressor.

In 1993 their second album "Of Long Duration Anguish" was released as MC and in 1994 as CD.

Korrozia Metalla cover "Russian Vodka" on that album was sung by bassist Cram which resulted in the idea of changing their style.

In 1995 Aggressor performed at the biggest rock-festival in Estonia, "Rock Summer '95".

So in 1996 they wrote lyrics to a song titled "No-Big-Silence 99" (a street in the U.S. where a massmurder was committed).