New York – UN Secretary-General Ban Ki-moon called for the world to "spare no effort" in rebuilding Gaza and reviving the two-state solution in a press conference on Thursday, following the conclusion of his recent trip to the region.Ban spent two days in Gaza, where he said the level of destruction was "much more serious than that in 2009.""The Gaza situation is a symptom of a larger problem: the stalemate in the Middle East Peace Process," Ban said. "I know that trust has been eroded and unilateral actions look tempting. But the two-state solution is the only way to end the senseless cycle of war."But Ban also had some choice words directed at Israel: "I fully understand the security threat from rockets above and tunnels below," he said. "At the same time, the scale of the destruction in Gaza has left deep questions about proportionality."