¿Buks and T-72s in Ukraine?

A NATO military officer in Brussels told The Associated Press that “we assess there are over 1,000 Russian troops operating inside Ukraine” now. He said NATO estimates that another 20,000 Russian troops are close by, right over the Russian border. He spoke on condition of anonymity because the material was confidential.

Additionally, Associated Press journalists on the border have seen the rebels with a wide range of unmarked military equipment — including tanks, Buk missile launchers and armored personnel carriers — and have run into many Russians among the rebel fighters. Ukraine also captured 10 soldiers from a Russian paratrooper division Monday around Amvrosiivka, a town 20 kilometers (12 miles) from the Russian border.

Joseph Dempsey, an analyst at the International Institute for Strategic Studies in London, said recent images of a military convoy in eastern Ukraine showed the presence of a variant of the T-72 tank that “is not known to have been exported or operated outside of Russia.”

The leader of the insurgency, Alexander Zakharchenko, said in an interview on Russian state television that 3,000 to 4,000 Russians have fought on the separatist side since the armed conflict began in April. The new southeastern front raised fears that the separatists are seeking to create a land link between Russia and Crimea. If successful, it could give them or Russia control over the entire Sea of Azov and the gas and mineral riches that energy experts believe it contains. Ukraine already lost roughly half its coastline, several major ports and significant Black Sea mineral rights in March when Russia annexed Crimea.

Syria's Readiness for Attack: A brief look

While Syria has been upgrading its aging defense system in recent years, it will be severely tested if a barrage of American-made missiles are fired at the country.

Russia's Interfax news agency quoted a confident, if unnamed, "military diplomatic source" on Tuesday who predicted "no easy victory" if "the U.S. Army together with NATO launches an operation against Syria. Buk-M2E multirole air and missile complexes and other air defense systems are capable of making a fitting reply to aggressors."

Estimates by the International Institute for Strategic Studies (IISS), Jane's and the Center for Strategic and International Studies (CSIS) of Assad's pre-war defense capabilities included 365 to 550 combat aircraft (50% of which CSIS estimates may be left now with questions about pilot capability); 25 air defense brigades with some 120 to 150 surface-to-air missile batteries (most aging or obsolete); and an array of more modern short-range surface-to-air weapons, including thousands of shoulder-launched MANPADS.

Syria has purchased a highly advanced S-300 system from Russia, which can intercept targets at a much longer range and higher altitude than anything currently in Syria's arsenal. But it hasn't been delivered yet, and even if it arrived tomorrow, it would take months to set up and properly train Syrians to use. One of the Syrian military's most potent assets are its Bastion coastal defense missiles, which Assad bought from Russia in the last few years. They could strike ships in the Mediterranean and would effectively push back the distances from which foreign ships would launch missiles used in any attack. Part of the system are Yakhont anti-ship missiles, which were reportedly Israel's target when it bombed a Syrian depot in July.