The 81st Conference on Glass Problems (GPC) was organized by the Kazuo Inamori School of Engineering, The New York State College of Ceramics, Alfred University, Alfred, NY 14802 and The Glass Manufacturing Industry Council (GMIC), Westerville, OH 43082. The Program Director was S. K. Sundaram, Inamori Professor of Materials Science and Engineering, Kazuo Inamori School of Engineering, The New York State College of Ceramics, Alfred University, Alfred, NY 14802. The Conference Director was Bob Lipetz, Executive Director, Glass Manufacturing Industry Council (GMIC), Westerville, OH 43082. The GPC Advisory Board (AB) included the Program Director, the Conference Director, and several industry representatives. The Board assembled the technical program. Donna Banks of the GMIC coordinated the events and provided support. Due to world-wide COVID-19 pandemic, the conference was a virtual event. It started with a full-day plenary session followed by technical sessions.

The latest issue in the industry-leading Ceramic Transactions series The most up to date entry in the Ceramic Transactions series published by The American Ceramic Society (ACerS), Ceramic Transactions: Volume 270 delivers the newest research, data, and information relevant to advanced ceramics and composites, electronic ceramics, energy materials, biomaterials, environmental issues, waste management, and nanotechnology.

First published in 2003. The NATO-led Operation Allied Force was fought in 1999 to stop Serb atrocities against ethnic Albanians in Kosovo. This war, as noted by the distinguished military historian John Keegan, "marked a real turning point . . . and proved that a war can be won by airpower alone." Colonels Haave and Haun have organized firsthand accounts of some of the people who provided that airpower-the members of the 40th Expeditionary Operations Group. Their descriptions-a new wingman's first combat sortie, a support officer's view of a fighter squadron relocation during combat, and a Sandy's leadership in finding and rescuing a downed F-117 pilot-provide the reader with a legitimate insight into an air war at the tactical level and the airpower that helped convince the Serbian president, Slobodan Milosevic, to capitulate.