In a nutshell, in 1967, israel launched a pre emptive strike
against syria, eygpt, jordan and iraq, and effectively wiped out
the airforces of these countries by noon. With air superiority, the
war continued for 6 days, by then israel occupied the west bank,
the sinai penisular, the golan height, and the gaza strip.
why they won? Modern weapons, dedicated and well trained men,
superior strategies and tactics...you name it, the reasons are
probably the same why israel is always winning.
war with iran will be different.