China and the United States have signed annexes to two agreements regarding major military operations and naval and air force encounters.
They signed the annexes respectively about "notification of military crisis" and "encounters in the air" to two "mutual trust mechanisms", a reporting system on major military operations and a code of safe conduct on naval and air force encounters, on Sept. 18, a Defense Ministry spokesperson revealed on Thursday.
"The move marks new progress in the building of the 'two mutual trust mechanisms'," said Wu Qian at a monthly press briefing.
Wu did not give further details of the documents.
China and the United States formally agreed on the mechanisms themselves in November. They were proposed by President Xi Jinping during his meeting with Barack Obama in June 2013.
Wu said the Chinese and U.S. defense departments have communicated and cooperated closely on the mechanism's formation over the past two years.
Signing of the annexes will help increase strategic mutual trust between the two countries and avoid misunderstandings and accidents at sea and in the air.
They also contribute to the two sides' aim to build a new type of relationship between major countries and a new type of Sino-U.S. military relationship, according to the spokesperson.
