Ich soll dich grüßen can be translated literally as I'm supposed to say hello to you.
In English this is commonly expressed using the active form:
He sends his regards.
Grandma sends her love.
Für Dich soll die Schlacht Erfüllung sein = the battle shall be fulfilment for you
If you want the german translation soll means should and is a conjugated form of sollen.
It means: What should I say?
ich weiss gar nicht was ich schreiben soll = I have no idea what I should write
The answer is simply: "What is that supposed to mean?" and is a short form of the question "Was soll (denn) das heissen?" or "Was soll (denn) das bedeuten?"
Unsere Zusammenarbeit soll auf einer offenen....(beruhen) translates as Our cooperation/collaboration should be (based) on an open....
Jacob Soll was born in 1968.
Ivan Soll was born in 1938-03.
David R. Soll was born on 1942-04-02.
Ivan Soll has written: 'An introduction to Hegel's metaphysics' -- subject(s): Metaphysics
Ungeküsst soll man nicht schlafen gehn was created in 1936.
The cast of Papa soll nicht heiraten - 1916 includes: Arnold Rieck