President Donald Trump confirms USA to pull out of nuclear treaty with Russia
 

[President Donald Trump has said the US will pull out of a nuclear treaty with Russia because Moscow has violated the agreement.
The 1987 Intermediate-Range Nuclear Forces Treaty helps protect the security of the US and its allies in Europe and the Far East.
Negotiated by then US president Ronald Reagan and Soviet leader Mikhail Gorbachev,
the Cold War-era treaty prohibits the US and Russia from possessing,
producing or test-firing a ground-launched cruise missile with a range of 300 to 3,400 miles.]

https://news.sky.com/story/trump-con...ussia-11531257

Trump changing the Deal,

Yes it seems that in order to keep up with Russia in the nuclear arms race America has to pull out so as not to break the rules of the treaty.Otherwise risk being at a disadvantage.
The balance needs to stay equal to prevent a nuclear war.Mutually Assured Destruction has to be a threat to everyone.Including defence systems.I think Putin is creating (or trying)missiles that can evade Americas missile defence systems on the European/Russian border aswell.