NATO ambassadors will meet on Tuesday to discuss security at the request of Turkey after last week's suicide bombing there and Turkish security operations against Islamic State and PKK Kurdish militants. NATO said in a statement on Sunday the North Atlantic Council, which includes the ambassadors of all 28 NATO allies, would meet following a request by Turkey to hold consultations under article 4 of NATO's founding Washington Treaty. In article 4, members are encouraged to bring subjects to the table for discussion for political consultation. Since the Alliance's creation in 1949, it has been invoked several times, such as by Turkey in 2003 and in 2012, and Poland in 2014. http://english.ahram.org.eg/News/136269.aspx