Angels in green Bullets

"Angels in their green Bullets". Cover Artwork for an older german SciFi Novel.
Mr. Alexander Kröger wrote this in the late 1980's, when the Iron Curtain still was there.
So, in East-Germany was an ideological Dogma, that all Lifeforms in that great Universe should be peacefull, lovely and - yepp! - in a "communist Mood"
Alexander Kröger wrote here in "Die Engel in den grünen Kugeln" the first "Space-Opera" in East Germany, where suddely a Fleet of angy and aggresive Aliens invadet that peacefull, communist Earth...
Funny, and sometimes .. gruesome. More than 30 years old now.