NATO's top military commander warned Wednesday that Russia's "militarisation" of the annexed Crimea region could be used by Moscow to exert control across the whole Black Sea region.

"We are very concerned with the militarisation of Crimea," US General Philip Breedlove told a press conference in Kiev.

"The capabilities that are being installed in Crimea will bring an effect on almost the entire Black Sea."

Breedlove, the commander of American forces in Europe, said that cruise and surface-to-air missiles installed on the peninsula, which Russia seized from Ukraine in March, would be "able to exert influence" over the strategic region.

He said that the US-led alliance was "watching for indications" amid fears over the possibility that Russia could move any of its nuclear arsenal to Crimea.

Russia's defence ministry said Wednesday that it had deployed a batch of 14 military jets to Crimea, as part of a squadron of 30 that will be stationed on the peninsula.

Breedlove was in Kiev for high-level talks with Ukraine's leaders over the crisis that has sent the West's relations with Moscow to their lowest ebb since the Cold War.

Ukraine has stirred fresh Russian ire by stating it hopes to join the Western security bloc in the face of Russia's alleged backing for a separatist conflict that has cost over 4,300 lives since April. There seems little chance of the ex-Soviet state actually joining NATO anytime soon as secure borders and reforms to its ill-equipped army would usually be a prerequisite.

Breedlove said that the alliance was providing training for Ukraine's forces that will bring them closer to "NATO tactics, techniques and procedures" but insisted that any decision on the country becoming a member was for political leaders.

NATO commander in Ukraine as fighting rumbles on
Kiev (AFP) Nov 26, 2014 - NATO's top military commander jetted into Ukraine for high-level talks on Wednesday as fighting rumbled on between government forces and Kremlin-backed rebels in the east.

US General Philip Breedlove was set to meet with Ukrainian President Petro Poroshenko as Kiev stirred further Russian ire by stating it hoped to join the Western security alliance.

Poroshenko this week mooted an eventual referendum on joining NATO and Ukraine's new pro-Western government has included a desire for membership in its official programme.

Russia is strongly opposed to the expansion of Western institutions in what it considers its backyard.

On Tuesday, Russian Deputy Foreign Minister Sergey Ryabkov said Ukraine's efforts to join NATO would "lead only to further complication of the situation".

"This will not increase security for Ukraine, it will not improve the life of the Ukrainian people," he told reporters.

The Ukrainian public has never been keen on NATO membership in the past. But there has been a dramatic shift in opinion since Russia annexed Crimea in March, with 51 percent backing NATO membership in a recent poll.

Kiev argues that it needs to join NATO in order to stave off alleged aggression from Moscow, which it accuses of stirring the conflict in the east that has killed over 4,300 people since April.

Breedlove has drawn angry condemnation from the Kremlin over his repeated assertions that Russia is pouring weapons and troops across the border to support pro-Moscow insurgents controlling swathes of the east.

Ukraine's hugely divisive ambition to join NATO, however, looks unlikely to happen any time soon as secure borders and a huge overhaul to the country's ill-equipped armed forces are seen as a prerequisite.

Czech President Milos Zeman on Tuesday said that the ex-Soviet state should stay out of the US-led alliance and remain "neutral".

Ahead of Wednesday's talks, Ukrainian military said that its positions had come under bombardment 47 times around the region over the past 24 hours.

The mayor's office in the rebel-held city of Donetsk said that shelling had continued unabated overnight in two outlying districts of the city, close to where Ukrainian troops are battling to keep control of the ruined airport.