<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.kufuatia uundaji wa eac mwaka 1999, kenya, tanzania, na uganda walianzisha umoja wa forodha eneo ambalo halina ushuru wa forodha na lenye kiwango cha tozo ya bidhaa zinazotoka nje ya nchi kinachofanana mwaka 2005, na rwanda na burundi wakajiunga mwaka 2009.  <response>: following the eacs establishment in 1999, kenya, tanzania and uganda created a customs union a duty-free trade area with a common external tariff in 2005, and were joined by rwanda and burundi in 2009. 