Regarding Jackson Diehl’s Nov. 11 op-ed column, “Magical Mystery Tour”:

Secretary of State John F. Kerry’s belief that U.S. leadership is key to reaching an Israeli-Palestinian peace agreement is just good common sense. Decades of violence proves that there is no military solution to this conflict, only a political one. Its contours are known and widely accepted by both peoples. There’s no guarantee that Mr. Kerry’s efforts will be enough to bridge the remaining gaps this time, but it certainly won’t happen without U.S. leadership.

No one thought this would be easy. Mr. Kerry recognizes, though, that a two-state solution is not only critical to Israel but also to the United States, as Israel’s closest ally and a world power vested in the stability and security of the region. He should be applauded for acting like he means it.

It’s pretty safe for pundits such as Mr. Diehl to bet against diplomatic success when it comes to this conflict. But for Israelis, Palestinians and Americans, it’s a dangerous proposition.

Jessica L.D. Rosenblum, Washington

The writer is director of communications for J Street.