To understand today’s crises in Iraq, Syria, Iran, and elsewhere, one must grasp their shared Lebanese connection. This assertion may seem odd. After all, what is the big deal about Lebanon? That little country hasn’t had top headlines since Israel deigned to bomb and invade it in 2006. Yet, to a large extent, the roots of the bloody tangle now enmeshing the Middle East lie in Lebanon: or to be more precise, in the Lebanon policy of Israel.