7 December is the international civil aviation day:

“Working Together to Ensure No Country is Left Behind”

International Civil Aviation Day was established in 1994 as part of ICAO’s 50th anniversary activities. In 1996, pursuant to an ICAO initiative and with the assistance of the Canadian Government, the United Nations General Assembly officially recognized 7 December as International Civil Aviation Day in the UN system.

The purpose of International Civil Aviation Day is to help generate and reinforce worldwide awareness of the importance of international civil aviation to the social and economic development of States, and of the unique role of ICAO in helping States to cooperate and realize a truly global rapid transit network at the service of all mankind.

Every five years, coinciding with ICAO anniversaries (2014 -2019 -2024 ...), the ICAO Council establishes a special anniversary theme for International Civil Aviation Day. Between these anniversary years, Council representatives select a single theme for the full four-year intervening period.

For 2015-2018 inclusive the Council has selected the following theme:

“Working Together to Ensure No Country is Left Behind”