This does not change that history will repeats itself. If bitcoin price decrease, it can not go down more $10000 and this has nothing to do with the Russia and Ukraine war.
This is only an assumption, the probability that it will happen is significant, but it is not a solid fact that should be counted on. The majority believe in the next halving and the bull run that will follow after that simply because that is the only thing that has a very clear point in the future in the sense that the halving will happen, but you should always be careful because no one can predict the future.
I also think that it is not realistic to expect that the price of BTC can go below $10k, but who thought that it would be this low today after it almost touched $70k? Being prepared for something completely unexpected is something that everyone should keep in mind, because that way there would be much less panic that often results in financial loss for most people who invest their money thinking that profit is assured.
As for the war, I would say that it affects everything, especially the markets in Europe, which suffer the most. The uncertainty caused by the war certainly affects the decisions of people who are less willing to make any risky investments, and when we talk about the EU area, it is about 500 million people who are generally people with considerable purchasing power. First they were hit by inflation, and then a bloody war broke out in their neighboring yard, which in any case is very bad for any business, unless you produce weapons and similar war supplies.