The document is an invitation letter from the Asia-Pacific Center for Security Studies (APCSS) inviting Colonel Teeranan Nandhakwang to participate in a two-day workshop on identity, cyberspace and national security in Southeast Asia, followed by a two-day conference on cyber security and cyber terrorism. The workshop will examine issues of identity and security in Southeast Asia through presentations and discussions. The conference will focus on trends in cyber security, preventing cyber terrorism, and international collaboration. APCSS will cover the Colonel's travel expenses, lodging, and meals for the events in Singapore.