Russian President Vladimir Putin on Friday cast his move to absorb four Ukrainian regions as part of an existential battle for Russia's very survival against an aggressive West, a blustery show of his readiness to further up the ante in the conflict in Ukraine that has now entered its eighth month.

The fiery speech that Putin delivered before signing the treaties for the Ukrainian regions' absorption into Russia marked some of his harshest criticism of the West to date. He accused the U.S. and its allies of trying to bring Russia down on its knees and enslave its people, and he vowed to use 鈥渁ll means available鈥 to fend off attacks - a clear reference to the country's nuclear arsenals.

鈥淭hey want to see us as a colony,鈥 Putin said. 鈥淭hey don't want equal cooperation, they want to rob us. They want to see us not as a free society, but a crowd of soulless slaves.鈥

Putin's televised speech took place at the opulent white-and-gold St. George's Hall in the Grand Kremlin Palace and was frequently interrupted by applause from an obsequious audience of top officials and lawmakers.

After signing the accession treaties with the Moscow-backed leaders of the four regions, Putin linked hands with them in a show of unity. That was startling - unusually close physical contact for the 69-year-old Russian leader who has kept most of his interlocutors at a long distance since the start of the coronavirus pandemic.

In a sweeping attack on the U.S. and its Western allies, Putin castigated their history of colonial gains, slavery, the destruction of indigenous people and cultures and other actions that he described as 鈥渞unning contrary to human nature, truth, freedom and justice.鈥

Putin denounced the U.S. for carpet bombings during the Korean and Vietnam wars. He particularly noted that the U.S. has been the only country to use nuclear weapons, dropping them on the Japanese cities of Hiroshima and Nagasaki in the closing days of World War II.

鈥淭hey created a precedent, by the way,鈥 Putin said in what some analysts saw as a veiled reference to his declared readiness to use 鈥渁ll means鈥 to deter Ukraine from pressing on with its counteroffensive.

鈥淭he West has continued looking for a way to strike us, weaken and break up Russia,鈥 Putin declared. 鈥淭hey simply can't accept the existence of such a big, great country with all its territory, natural riches, mineral resources and the people who can't and won't follow someone else's bidding.鈥

In a blunt statement, Putin also accused the 鈥淎nglo Saxons鈥 - a term Russian officials use to refer to the U.S. and Britain - of sabotaging the Russia-built Nord Stream 1 and 2 gas pipelines under the Baltic Sea to Germany.

He didn't name a specific country and didn't offer any proof to back up his allegations. U.S. President Joe Biden's administration on Friday rejected Putin's pipeline claim as 鈥渄isinformation鈥 designed to distract from his annexation of parts of Ukraine.

Putin described the U.S. push for a rules-based world order as a hypocritical attempt to cover up the 鈥淯.S. diktat based on crude force.鈥

鈥淲e hear them say that the West upholds the rules-based order, but where do these rules come from?鈥 Putin said. 鈥淭hose are ravings and plain cheating, double or triple standards intended for fools. Russia is a great country with a 1,000-year history, an entire civilization and it won't live according to those forged, fake rules.鈥

He charged that the U.S. troop presence in Germany, Japan and South Korea effectively amounts to their 鈥渙ccupation鈥 and reminded the audience the U.S. had eavesdropped on their leaders, saying it was a 鈥渟hame not only for those who did it but also for those who slavishly swallowed that.鈥

As part of his sweeping diatribes against the West, Putin also fired broadsides at Western gender policies that he described as 鈥渟atanic,鈥 citing the Bible to declare that 鈥渢hose poisonous fruit have become visible, not only to people in Russia, but also many in the West.鈥

The Russian president cast Western efforts to contain Russia as racist and discriminatory, charging that 鈥渢he Russophobia articulated today across the entire world is nothing but racism.鈥

鈥淩ussia realizes its responsibility before the global community and will do everything to bring those hot heads to their senses,鈥 Putin said. 鈥淚t's obvious that the current neo-colonial model is doomed.鈥

He described the showdown with the West over Ukraine as a 鈥渂attlefield where our destiny and history have called us鈥 to fight for the 鈥済reat historic Russia, for future generations, for our children and grandchildren.鈥

The Russian leader described his move to absorb the four Ukrainian regions as the restoration of historic justice, showing his contempt and disdain for Ukrainian statehood.

Putin claimed that 鈥渞eferendums鈥 this week in the four regions in Ukraine - which the West says are completely illegitimate and took place under Russian occupation - reflected an 鈥渋nalienable right of the people based on historic unity, the sake for which generations of our ancestors have won their victories.鈥

鈥淥ur common destiny and our 1,000-year history are behind the choice that millions of people have made,鈥 he said.

He called on Ukraine to halt its counteroffensive - which has recaptured some territory in the northeast - and sit down for talks, but bluntly warned that the accession of the four regions into Russia is non-negotiable. That tough stance leaves no prospects for peace negotiations.

鈥淧eople in the four regions are becoming our citizens forever,鈥 Putin said, vowing that 鈥淩ussia will not betray them.鈥