Separate topic. Wars are caused by governments not by arms manufacturers. They are often brought into being by governments. Car manufacturers do not cause accidents, drivers do.
It is easy to be anti-war but it needs to be remembered that not fighting kills as many people as fighting. I opposed the Iraq war, not because I thought it would save lives, it wouldn't, but because I thought, rightly, it would make matters worse not better. Sadam Hussein's regime had killed and was killing many tens of thousands of Iraqi's and since his overthrow Iraqis have continued to kill other Iraqis at the much the same rate, if not more prolifically than Sadam did. All the war did was make a bad situation worse.
If we hadn't fought WW2 and had allowed the Germans to invade, us not fighting would not have stopped the German invasion, as many British people would have died, but different ones, Jews, the disabled and ill, political opponents and their families, plus of course most of the Jews who survived the Holocaust because we went to war.
Remember Martin Niemoller's poem (he was killed by the Nazis)
When the Nazis came for the communists,
I remained silent;
I was not a communist.
When they locked up the social democrats,
I remained silent;
I was not a social democrat.
When they came for the trade unionists,
I did not speak out;
I was not a trade unionist.
When they came for the Jews,
I remained silent;
I wasn't a Jew.
When they came for me,
there was no one left to speak out
I am not advocating war, just pointing out that sometimes the price of pacifism can be very high and perhaps the alternative is preferable.
I will wear my poppy with pride in remembrance of my grandfather, two great uncles and distant cousin who died in WW1 and the contribution my grandfather and his seven sons made in WW2 that has enabled so many people in this country and elsewhere in Europe to live peaceful prosperous lives in their own communities for 70 years. Why are so many people from other countries outside Europe so desperate to get to Europe at almost any cost?