Great Britain is an island. It's not between Germany and Russia. If you're a country between powerful neighbors with history of waging wars on you, you either n

Great Britain is an island. It's not between Germany and Russia. If you're a country between powerful neighbors with history of waging wars on you, you either need to be very powerful, or you need an alliance. Poland is far from powerful. It's not going to get powerful in the foreseeable future. Therefore it needs an alliance.