Putin also emphasised that the United States is pondering the use of ballistic missiles with conventional warheads, saying that the launch of such a missile could be mistaken for the launch of a nuclear-tipped one.
The United States of America will pull out of the Intermediate-Range Nuclear Forces (INF) Treaty, confirmed Russia's deputy foreign minister Sergei Ryabkov.
He also warned that the threat of nuclear war should not be underestimated.
Russia's hopes for repairing ties with the US under President Donald Trump have fizzled amid allegations of Russian meddling in the 2016 election - charges Putin has denied.
The U.S. exit from Syria would be a major achievement for the Russian leader, who has backed Syrian President Bashar al-Assad through nearly seven years of civil war amid efforts by the U.S and its allies to oust him. Regarding the recent standoff with Ukraine, he accused President Petro Poroshenko of seeking to increase his rating by staging provocations in the Black Sea. "We will ensure our security; we know how to do it".
"We are witnessing the breakup of the arms control system", Putin said, noting the USA plan to opt out of the INF Treaty and its reluctance to negotiate the extension of the New START agreement.
In more conciliatory language, Putin rallied to Trump's defense against his domestic opponents, warning that the Democrats' success in the midterm elections to the House of Representatives will lead to "new attacks" on the USA president.
"For mankind this is very bad, because it will take us to a risky point", Putin said, expressing concern about moves to lower the threshold for the use of nuclear weapons, including the USA decision to produce lower-yield missiles. "We have to ensure our security", Putin said, "and for that they will complain about us having the advantage".
Trump charity shuts over allegations of misuse of funds
A lawyer for the foundation characterized her announcement as making a "misleading statement ", the New York Times reported . During his presidential campaign, Trump allegedly allowed foundation donations to be controlled by his political operatives.
India vs Australia: Australia name unchanged squad for last two India Tests
Both captains played down the on-field banter during the match, saying it never crossed the line of what was acceptable. Australia's previous Test win was against South Africa at Kingsmead in Durban in March.
Penny Marshall, 'Laverne & Shirley' star and acclaimed film director, dies at 75
Marshall made the enormously charming and much loved The Preacher's Wife with Denzel Washington, Whitney Houston and Courtney B. Billy Crystal weighed in: 'Sad to hear of Penny Marshall's passing. a great comedienne a terrific director and a dear friend'.
"We had to respond [to the ABM Treaty] with creating a new type of weapon to overcome these anti-missile systems", Putin said.
Amid a litany of complaints over Washington's policies, Putin had one nice thing to say about the United States: He welcomed Trump's decision to withdraw the USA military from Syria.
When asked about Donald Trump's decision on Wednesday to begin withdrawing forces from Syria, Putin said he "generally" agreed with the US president's decision that the Islamic State in Iraq and Syria (ISIS) had been defeated there.
Russia's gross domestic product is set to grow by 1.8 percent this year, while industrial output has grown faster at 3%, he said.
However, the Russian president cast doubt on whether or not Trump would follow through, noting how the US has announced several withdrawals after 17 years in Afghanistan.
Russia's economy registered 1.5 per cent growth last year following the two-year stagnation.
"When it comes to military vessels, they have to be in touch with the Coast Guard", Putin said, since it controls who passes through the strait and when - couching it as a matter of navigation protocol.
"I don't understand what she could confess to since she was not carrying out any government assignments... whatever she said was under threat of 10 to 15 years in jail", Putin said.