Grand strategies can be thought of as overall survival strategies of all states. Great powers seek survival against other great powers seeking to undermine their power and position, determining prestige-seeking behavior as psychotic and destructive. Weak states suffer from systemic vulnerabilities and trade whatever political power they have to a great power for economic assistance. If enough weak states support a particular great power, then that great power will become more powerful relative to competitors. This forms an international system fashioned by these transactions.