Analysis of information sources in references of the Wikipedia article "Relações entre Rússia e Ucrânia" in Portuguese language version.
Ukrainian First Deputy Prime Minister Vitaly Yarema Friday said his country is suspending military cooperation with Russia over Moscow's troops movements near the Ukrainian border. [...] Although the two ex-Soviet neighbours have very close links in the military-industrial complex, Kyiv was forced to stop supplying defence goods to Russia as these could be used against Ukraine if military tensions arise, Xinhua reported citing Yarema.
There are some reports that Ukraine had established effective custody, but not operational control, of the cruise missiles and gravity bombs. ... By early 1994 the only barrier to Ukraine's ability to exercise full operational control over the nuclear weapons on missiles and bombers deployed on its soil was its inability to circumvent Russian permissive action links (PALs).