In my turn I put my activate race in decline, in the next turn I select a new race and then...
1. I can conquest (with this new race) any border region? or...
2. I can conquest just an adjacent region to my declined race?
After you send a race in decline, the rules say:
The rules, p. 6 wrote:
On his next turn, the player will select a new Race and Special
Power combo from among those now available to him. He then
follows the same rules used during the first turn of the game.
These "same rules" include:
The rules, p. 4 wrote:
A player's race deploying on the map for the first time must
enter it by conquering one of its border Regions