"Losers of wars don`t define new borders, they accept the new borders imposed on them by the victors." It is illegal to acquire territory by war. "Why is the Russian and Polish occupation of German lands ok .." Treaties. "..but Israel has to give up land it won in a successful defensive war?" No treaties giving Israel a right to Palestinian territories.
U.S. weighs sanctioning Russia as well as China in cyber attacks (Reuters)
from the article: Palestinians under world pressure not to declare state unilaterally