[AlaskaErik]

He demanded countries DOUBLE defense spending to 4 per cent of GDP

Ask for four, settle for two. Always ask for more than you'll settle for. Great strategy.

[Liz]

[RinaseaofDs]

In this case, 4 is the settlement.

Most of these countries are billions in arears and levying ridiculous tariffs and trade restrictions.

4 likely settles all past debts.