Krasivanova Twig

Don't even think of invading a NATO nation, he said, because we will be armed and we will be ready.

But just last week, we heard from President Putin, who said he'd be ready for a war of Europe if it comes to it.

Now, of course, you can dismiss this as saber-rattling from Moscow or bombastic language from NATO.

But on the ground, the temperature and the tensions really are rising.

Our Europe editor, Katja Adler.

Now for more on one of today's big stories, you can go on YouTube and search for BBC News.

Then click on the logo and then choose Podcasts and Global News Podcast.

There's a new story available every weekday.

Next, many football fans have reacted with anger at the cost of tickets for next year's men's World Cup finals.

The prices for specific games were revealed by the sport's global governing body, FIFA.

The fan group Football Supporters Europe called them extortionate and called on FIFA to review them.

So, how much are they and how do you get them?

Manny Jasmy from BBC Sports spoke to Alex Ritson.

Well, this is the third phase of ticket sales, but the first in which fans know who's playing whom.

And the easiest way, I guess, is to register on the FIFA website so you get an ID so that you can purchase them if you like.

But unlike previous World Cups, when ticket prices in every round were the same for every game,

These tickets vary according to the perceived attractiveness of the fixtures.

For example, since the draw, games involving Lionel Messi's Argentina and Ronaldo's Portugal have tripled or quadrupled in price.

There's a big game in the first round between Croatia and England.

The cheapest seats for Croatia fans in that is $265 going up to $700 in the top category.