In this series we are looking at protectionism. Here, the auction is about to die (at a low level), and you have to decide whether to allow the opposition to buy the hand cheaply or whether you should bid something in an attempt to steal the deal. You have a whole new set of decisions to make about whether to bid and what to bid.
First, some general concepts. When the auction grinds to a halt at a low level, it usually means that the points are reasonably evenly distributed around the table. That means you and your partner have as much right to this contract as the Bad Guys.
In other parts of the world (mainly the USA), by the way, the "Protective position," is called the "balancing seat". Hmmm. You are balancing the auction after the opponents let it die. Whatever you call it the situation is essentially the same. For some reason your partner hasn't bid, and it is probably because of his shape or because the opponents have bid his best suit.
These quiz questions may help guide your decisions in protecting.