▁in ▁over ▁ 5 0 ▁countries . ▁These ▁autonom ous ▁organizations ▁represent ▁the ▁international ▁community ▁network ▁of ▁Y F U . ▁Other ▁Y F U ▁international ▁activities ▁are ▁carried ▁out ▁by ▁a ▁volunte er ▁International ▁Ad vis ory ▁Council ▁and ▁a ▁professional ▁staff ▁known ▁as ▁the ▁International ▁Secret ariat . ▁Y F U ▁organizations ▁around ▁the ▁world ▁sub scribe ▁to ▁a ▁set ▁of ▁basic ▁operating ▁and ▁philosoph ic ▁standards ▁that ▁em body ▁Y F U ' s ▁commit ment ▁to ▁conduct ing ▁high ▁quality ▁programs . ▁The ▁standards ▁set ▁the ▁basic ▁requirements ▁that ▁Y F U ▁programs ▁must ▁meet . ▁ ▁The ▁um bre lla ▁body ▁for ▁national ▁Youth ▁For ▁Under standing ▁organis ations ▁across ▁Europe ▁is ▁E EE - Y F U . ▁ ▁History ▁of ▁Y F U ▁Youth ▁for ▁Under standing ▁was ▁founded ▁by ▁Rach el ▁And res en . ▁In ▁ 1 9 5 1 ▁it ▁was ▁proposed ▁to ▁church ▁leaders ▁in ▁Ann ▁Ar bor , ▁Michigan , ▁USA ▁that ▁te en agers ▁from ▁Germany ▁be ▁brought ▁to ▁the ▁United ▁States ▁to ▁live ▁with ▁a ▁family ▁and ▁attend ▁high ▁school ▁for ▁a ▁year . ▁As ▁a ▁result , ▁ 7 5 ▁German ▁te en agers ▁arrived ▁in ▁Michigan ▁in ▁July ▁ 1 9 5 1 ▁and ▁were ▁hosted ▁by ▁volunte er ▁U . S . ▁families . ▁ ▁The ▁exchange ▁program ▁itself ▁origin ated ▁in ▁late ▁summer ▁ 1 9 5 1 ▁by ▁the ▁High ▁Commission ▁in ▁Germany ▁as ▁the ▁" U r ban / R ural ▁Te en