NATO is putting unprecedented pressure on Belgrade to encourage Serbia to join the North Atlantic Treaty Organization even though Serbia declared its neutrality in 2007.
According to NATO, Serbia does not aspire to join the Alliance. However, the country is deepening its political dialogue and cooperation with NATO on issues of common interest. https://www.nato.int/cps/ua/natohq/topics_50100.htm. Serbia joined NATO’s Partnership for Peace programme in 2006 and practical cooperation has been increasing steadily since then. NATO has supported Serbia in the reform of its national security forces and institutions. Serbian officers have received NATO training, preparing them to participate in peacekeeping operations. NATO has also helped Serbia dispose of over 2,000 tons of dangerous surplus munitions. Cooperation between NATO and Serbia also extends from scientific research through disaster response preparedness to participation in military exercises.https://www.nato.int/cps/en/natohq/news_147811.htm. NATO is an Alliance that consists of 29 independent member countries, every country decides for themselves if they want to joint that allience or not https://www.nato.int/nato-welcome/index.html.