the market yes.
bitcoin not a chance.
bitcoin trading no.

and by market i mean the centralized exchanges which should really be stopped and replaced with the decentralized versions of themselves anyways. and that is what any country can stop.
but bitcoin is a decentralized currency and as long as there are peers on the network sustaining it, bitcoin will live on. it can even be traded in a decentralized manner.

This is the beautiful thing about Bitcoin. When you buy bitcoins you are taking away from the power of the centralized banking system which is what our current financial system revolves around. Bitcoin's system is decentralized which means nobody owns it or controls it, thus leaving room for innovation and adoption worldwide. It is unstoppable and this is why we don't see them really trying to stop it, because they don't want to make a public mistake and look bad.

I think there is a way, to align the use of bitcoin and crypto currency to fraud. And then, at the first opportunity, people will be imprisoned, after 10-50 cases, no one will be particularly engaged in this. Even on the Internet anonymity is under threat and to calculate who, what and when sold has the opportunity.

The only thing they can do is to hinder the exchanges in their own country which won't really hurt btc at all. Simply because they cannot influence everyone and there will always be other countries who will support btc and the whole cryptocurrency world. They cannot stop bitcoin as well as the people who are patronizing it. Seeing its potential, people will not just dump their coins just because of some petty power play pulled out by group of people who are afraid to lose a lot from income taxes.

What would happen:

-The price collapses extremely dramatically (at least 90% of the way down).
-The majority of people try to panic sell through P2P means and leave, never intending to come back again.
-Those who care stick around (especially the anti-government types in America and occasionally other countries), but they use mixers illegally and take further steps to protect their privacy.

If they were really adamant to get rid of BTC altogether, they would most likely try a 51% attack, which would be significantly easier because less people would be mining when the price was lower.  In that case, they may be able to manipulate unconfirmed transactions and potentially mess up BTC altogether.

However, this is almost certainly not going to happen.

It's very unlikely they could eliminate Bitcoin entirely.

Though new regulations are coming, there's only so much control they can actually have. Unless they somehow manage to physically stop every miner, there's very little change they can have a finite effect.

Take China, for example, they've made all ICO-related investments completely illegal, yet millions of Chinese RMB are still being invested and hundreds, if not thousands, of people are still hodling their tokens. Could the gov't find out who each of these people is and confront them, take them to jail... Maybe, but it'll take them a really long time, and most people will just go to a jurisdiction that won't be so tight on their rules.

Blockchain is the future because it needs no centralised servers to hold it, it's a free currency.

Countries can target several aspects of Crypto currencies with strict regulations. <AML/KYC> We see some countries accepting Bitcoin, but they are apposed to ICOs, so they will not ban all Crypto currencies, but rather concentrate on regulating these ICOs. The Chinese government is cool with Bitcoin mining, but they concentrate on regulating the exchanges where currency are converted to their reserve currency.

It is all about money and control, so if you play by their rules, then everything will work out for you. 

I think it allows a stronger country if the State banned the circulation of bitcoin in his country. The policy of a country depending on who its leader. If State leaders the strong countries resent the bitcoin, they will create a law banning bitcoin in his country.

Bitcoin is just starting its way. So far, people will be interested in him, stop him, no country can. For society, bitcoin can be a salvation.

it is only the higher officers who can answer this question,but in my opinion if strong countries in this world decide to stop this market,well..i know that they can do it but if our force is very strong they can never do it,because we will fight for our right and if we will tell our reasons i know that they will understand us.