President Vladimir Putin on Tuesday watched Russia's biggest military maneuvers since Soviet times, involving 160,000 troops and about 5,000 tanks across Siberia and the far eastern region in a massive show of the nation's resurgent military might. Dozens of Russia's Pacific Fleet ships and 130 combat aircraft also took part in the exercise, which began on Friday and continue through this week. Putin watched some of the drills on Sakhalin Island in the Pacific, where thousands of troops were ferried and airlifted from the mainland, according to a report of the Associated Press. Russia's Deputy Defense Minister Anatoly Antonov assured foreign military attaches on Monday that the exercise was part of regular combat training and wasn't directed against any particular nation.