Macedonia's accession was blocked by Greece because of the ongoing name dispute and so it didn't join its Albanian and Croatian partners in being granted full membership earlier this year, but on May 8 "NATO Secretary-General Jaap de Hoop Scheffer on Friday urged Macedonia to solve its name row with Greece, saying it's the only obstacle on its way to NATO." 
On December 4th of last year Montenegro and Bosnia and Herzegovina were officially invited to join the Adriatic Charter, hence the new designation Adriatic-5 [A5].
At the meeting in Tirana on May 8 "At a joint press conference following the meeting, the [foreign] ministers expressed hope that Serbia and Kosovo would joint the Adriatic group as soon as possible...." 
With Bulgaria, Romania and Slovenia NATO members since 2004 and Albania and Croatia since April of this year, the incorporation of the remaining three Adriatic Charter nations, Serbia and its breakaway province of Kosovo into the Alliance would make the entire Balkans region NATO territory.
The "the origins of NATO’s transformation after the end of the Cold War" began in the Balkans fifteen years ago and the world's first global military bloc returned to complete its conquest. One which now includes the world's newest small nation, Montenegro, which under Western tutelage left the State Union of Serbia and Montenegro to become independent (formally speaking) in 2006, and the world's newest pseudo-state, Kosovo, whose secession from Serbia was formalized by the major NATO powers in February of last year.
As to what degree of sovereignty new NATO members and candidates possess, on May 7 it was announced that "NATO and the Albanian government were in negotiations on the take-over by the Alliance of the full control of Albania's air space." 
One is reminded of the Aesopian apologue of the wolf offering to free the sheep from the harsh ministrations of the sheepdog.
Kosovo has hosted the largest US overseas military bases constructed since the Vietnam War, Camp Bondsteel and Camp Monteith, since NATO's takeover of the province in 1999.
At the beginning of this year the secessionist entity in Kosovo, brought to power through NATO's relentless bombing and occupation in 1999, proclaimed its intention to create its own armed forces, the Kosovo Security Force, "a NATO sponsored army established as part of Kosovo's status arrangements for its declaration of independence of last year.
"The United States has already provided the force with army uniforms, while
Germany has equipped them with firearms. The training of the force is handled by British KFOR troops." 
In addition, Colonel Dieter Jensch of the German Ministry of Defense said that "Germany will assist Kosovo Security Force with 204 military vehicles. The assistance is valued at 2.6 million Euros. Germany will also send 15 military personnel to help build KSF structures and to train the members of this force." 
Creating such a force is flagrantly and grossly in violation of United Nations Resolution 1244 and to render this Western-engineered travesty even more criminal, "The Kosovo Security Forces will be commanded by former
Kosovo Liberation Army military leader and, until yesterday, Kosovo Protection Corps commander Sulejman Selimi....
"Selimi...was the military head of the Kosovo Liberation Army that fought Serbia in the separatist war of 1998-99." 
Regarding the world's - officially - youngest nation, Montenegro, no sooner had former NATO Secretary General and then European Union foreign policy chief Javier Solana assisted in wresting it from the State Union with Serbia than the Pentagon spotted another stray lamb.
In October of 2006 the American guided missile cruiser USS Anzio paid the first of a series of ongoing visits to "Montenegro [which is] eager to join NATO's Partnership for Peace outreach program, considered a stepping stone to
alliance membership." 
The following spring "Four NATO ships, including USS Roosevelt, arrived
Saturday in Montenegro's coastal town of Tivat." 
Within weeks the USS Emory S. Land submarine tender and the commander of the U.S. Naval Forces Europe, US Navy Adm. Harry Ulrich, arrived in the same city to "host an independence day celebration," with the "Emory S. Land visit[ing] Tivat to provide training and assistance for the Montenegrin Navy and to strengthen the relationship between the two navies," and Ulrich stating: