Does Israel have a CDMA/LTE band 900 network? The Charge uses a SIM card to authenticate on the LTE network, but its certainly not a GSM device. Most foreign carriers that use SIM cards have GSM or W-CDMA (UMTS) networks, which the Charge definitely cannot run on. If Israel has a 3g network that's entirely compatible with VZW's network, it MAY work, but even then I don't know how the SIM would authenticate, since CDMA networks don't use SIM's (Verizon has built in the ability to authenticate in order to allow LTE phones to be compatible with their legacy networks).
Again, the Charge is NOT a world phone, the SIM card slot is NOT for roaming on foreign GSM networks. It is only for Verizon's domestic LTE network (and all their networks really, since these phones are not activated by their ESN, but by the SIM).