Four hundred Jewish community activists and leaders arrived yesterday on a United Jewish Communities (UJC) mega-mission from cities in the U.S. Participants are from Seattle, Philadelphia, LeHigh Valley, Minneapolis, Memphis, Dallas and Tucson. They will be visiting Jerusalem, Kiryat Malachi, and other communities with which they have a Partnership 2000 relationship. Many of them will be participating in the dedication of 39 security vehicles that were paid for by the UJC's $319 million Israel Emergency Campaign “Keeping the Children Safe” Program. The vehicles will be given to various Civil Guard chapters around the country. This fall, 1,700 UJC Israel mission participants have provided a badly needed boost to Israel's economy with an estimated 10,100 hotel nights and 313 days of tour guides and bus days.