Sergei Yastrzhembsky, Russian President Vladimir Putin’s special representative on EU relations, gave the EU a polite "don't touch our stuff" message with regard to former Soviet territories. Russia still feels it has a claim on these areas, but the expansion of the EU to include former Warsaw Pact nations is rapidly giving the EU common borders with quite a few former Soviet lands -- and prompting the EU to take an interest in local disputes. This isn't great for Russia, which has been sponsoring separatists in Moldova and Georgia (despite being such a stickler about separatists in Chechnya).
At the same time, Russia has announced it is expanding its ICBM fleet, picking up 17 new Topol-M missiles (versus an average 4 per year in earlier years):
President Vladimir Putin and other Russian officials have described the Topol-M as a bulwark of Russia’s nuclear might for years to come, and hailed its ability to penetrate any prospective missile defenses. Putin last week dismissed Washington’s claims that missile defense sites it hopes to establish in Poland and the Czech Republic were intended to counter threats posed by Iran, and said that Russia would respond by developing even more efficient weapons systems.
Even so, Putin wants businesses in Russia to do as he says, and not as he does. He's warned them to stop using scary language like "expansion" and "market conquest", lest they freak out potential future expandees.