(Austria-hungary) began to move troops but didn't declare war.
Because They didn't want to be involved in any affairs of another country and not to favor any specific side. However, The U.s does end up favoring the Allied Powers.
their country should stay out of the war
Germany
Different countries do it in different ways. In the US, only Congress can do it- but the Constitution doesn't specify exactly how, so it's always been done basically like passing a law. In countries that have a monarch, like Britain or Japan (before World War II), that monarch has the sole power to declare war, but they usually consult their advisors before doing so.
Any country can declare war on anybody else. What matters is can you back it up?
France
Congress is supposed to declare war. But, in recent years there have been many "Conflicts" where the US does not declare was against any country, but just sends soldiers with Congress's consent. The last time the United States declared war against Another Country was World War II.
The United States was bombed by the Japanese at Pearl Harbor which cause a declaration of war but Germany had an alliance with Japan and it had forced the United States to declare war on Germany too. Then Germany had an alliance with Italy which cause the United States to declare war on yet another country. Then the world was at war and therefore World War 2 started.
Congress is supposed to declare war. But, in recent years there have been many "Conflicts" where the US does not declare was against any country, but just sends soldiers with Congress's consent. The last time the United States declared war against another country was World War II.
(Austria-hungary) began to move troops but didn't declare war.
Each country had a secret alliance with maybe four or five other countries. so if one country declared war on another their allied countries would have to declare war as well.
italy
Poland.
Well, it happened like dominoes. Hilter wanted to take over a country ( can't remember the name of that country so lets call it country 1.) but that country fought back and asked another nation for help ( country 2). Hitler then fought both countries and managed to invade and take over country 1.
No country is dumber then another.
Czechoslovakia