The political problems between Iran and the USA might lead to another war and we know what happens when countries goes to war. The whole world goes into a panic mode and they start looking for safe havens to protect their wealth. Singapore are seeing this to with the trade wars and the uneasy relationship between China and the USA.

Bitcoin is not just a safe haven, it is also a quick method to transfer large amounts of wealth over borders, when a war threatens a country. All of this has a positive impact when situations like this, force people to buy more bitcoins to protect their wealth.
such war would be so unpredictable and may not turn out as you think. these tensions are between Iran and US right now but if a war breaks out it will suck the whole middle east and US into war first and then will suck Europe into the war too. at such a large scale i don't think people would be looking for high risk investments such as bitcoin.