I am not sure when the exact update was made, but CIA’s current (last updated Oct 5, 2006) Factbook on Armenia, https://www.cia.gov/cia/publications/factbook/geos/am.html, acknowledges that the WWI “forced resettlement” (the Armenian Genocide) took place “in the western portion of Armenia.”

The original 2006 Factbook had no mention of “the western portion of Armenia” (see http://www.theodora.com/wfbcurrent/armenia…roduction.html), but it did refer to “eastern area of Armenia” suggesting that there was also western Armenia.

For many years Turkey has campaigned for the elimination of the phrase “Western Armenia” (or Armenia) from history books and maps changing the 2500-year-old phrase to “eastern Turkey” or “eastern Anatolia” since the Armenian Genocide of 1915.

The Factbook has also been referring to “Armenian Highland” – the thousands of years old geographical name of what are now eastern Turkey, northern Iran, the Armenian Republic and eastern part of the Azerbaijani Republic. Turkish propaganda has worked hard to eliminate the term “Armenian Highland” by calling it “Anatolia,” although by “Anatolia” it is generally meant Asia Minor