WW3 bound to happen

So yesterday I was discussing politics with my grandma. She mentioned world War 3 being bound to happen. At first, I laughed but then realized it can be true. China has already offered Mexico help. We know from history Russia has always tried to be #1 and can't be trusted. Russians love trump because they know he's stupid and it will be an opportunity for them. China also has always tried to be #1. There's a video were trump sent a spy plane to China and China was very angry telling them to leave. If you watch the news you will know that almost all countries are preparing there war weapons and recruiting soldiers. Why is that do you think? Btw fun fact. Russia has the best weapons.

LET'S KEEP THIS DISCUSSION CLEAN AND RESPECTFUL