MOSCOW — There was no one to stop him.
Recovering the region that was part of Russia for centuries has boosted Putin's standing among countrymen nostalgic for Moscow's lost superpower status. Putin calculated — correctly — that Crimea wasn't so important to the U.S. and its European allies that they would back their harsh criticism with military muscle.
But he also made sure that the downsides — international isolation, new burdens on Russia's already strained budget and a continuing armed standoff with a sovereign neighbor — were never debated internally. The quashing of political opposition and independent media has left virtually no one to challenge his decisions.
The former KGB officer's ability to act unilaterally is the result of a choreographed campaign during his 14 years in the Kremlin to eradicate limitations on his power. He can count on fawning support from a like-minded inner circle and unquestioning endorsement by the parliament. The Federation Council voted 90-0 early this month to authorize deployment of Russian troops to Ukraine — after the fact.
Outside the halls of power, public protests without government approval have been banned, punishable by fines and jail time. Dissenting voices have been silenced by charges of defamation or treason brought by a judiciary of the Kremlin's choosing. The constitution and election laws, in place for more than two decades since the breakup of the Soviet Union, have been revised to concentrate power in the presidency and enhance the advantages of incumbency. The providers of international development aid and democracy-building projects have been required to register as "foreign agents."
Putin also controls the narrative presented to Russians through news agencies, television and radio now almost exclusively in the hands of loyal spin doctors.
The last of Russia's reasonably independent media fell to government oversight in January. New Kremlin-vetted editors were installed at Echo of Moscow radio and TV Dozhd, which had been among the last holdouts. Channel One, the main news source for Russians, was brought under state control nearly a decade ago.
State-run television, whose scripts and video must be reviewed by the Kremlin, portrayed Ukrainian demonstrators who drove out Russian-backed President Viktor Yanukovich as criminals and fascists. Russia's subsequent seizure of Crimea was cast as a Kremlin rescue of ethnic Russians from the new leadership in Kiev.
Television, where most Russians get their news, aired images of radicals throwing firebombs and beating police with barbed wire-wrapped truncheons, leaving out scenes of the majority of protesters peacefully waving flags and chanting in favor of closer ties to Western Europe.
Russians never saw on state television or in newspapers images of their paratroopers landing at Simferopol, the Crimean capital. Nor did they view pictures of masked gunmen with Russian army-issued weapons and uniforms taking control of Crimea's parliament, government, airport and border crossings.
In the days leading up to a March 16 ballot in which Crimeans voted to secede from Ukraine, the Kremlin also took steps to silence Web-based critics, such as anti-corruption crusader Alexei Navalny and former chess world champion Garry Kasparov.
Navalny was convicted last year on an embezzlement charge widely seen as punishment for his criticism of Putin. He drew a five-year sentence, suspended on condition he refrain from illegal activity. He was arrested again last month for taking part in an unauthorized demonstration outside a Moscow courthouse where fellow protesters were on trial and has been sent back to prison.
Other jailed Kremlin critics were released before the Olympic Winter Games in what many viewed as an attempt to mute foreign criticism of Russia's human rights record. But they have also found their newfound freedom restricted.
Pussy Riot punk rockers were arrested for trying to perform their new protest songs on the Sochi promenade and were beaten by Cossacks, the pre-revolutionary nationalist militia that has appointed itself the defender of Russian honor.
Oil magnate Mikhail Khodorkovsky, freed in December after almost a decade in remote gulags, has taken up residence in Switzerland, daring only to weigh in on the fate of fellow Putin opponents from abroad and stage a stealth visit to support Kiev's triumphant protesters, a gesture that passed unnoticed in Russia.
What remains of Putin's political opposition is left to take its grievances to foreign media, whose reports are used by the Kremlin to discredit the powerless politicians as Western lackeys.
"With my own eyes I've witnessed the step-by-step contraction of our political freedoms," said Ilya Yashin, a 30-year-old opposition activist.
"If I'm meeting with a foreigner in a public place, the table next to me is occupied by security and they are videotaping us," Yashin said of the harassment that has followed his debut on the opposition scene. "I'm not being paranoid. They have shown the footage on national television and accused me of collaborating with foreigners to defame Russia."
Yashin, too young to have personally experienced Communist-era surveillance, says his phone is tapped and his emails are intercepted.