RJ says that it is possible to interfere with the creation of a gateway, and in turn, to interfere with the interference.

But since blocking a gateway from opening is obviously a very rare skill, it is clear that it is not as easy to achieve as making a gateway.

Most medium strength channelers can open a gateway. Logain was able to weave six gateways instantaneously, just like Lews Therin.

So why would one try to counter the interference in a gateway opening and struggle to keep it open, if you could just as easily spin 6 more gateways while the defender is trying to close your first one?

You say why only have 1 channeler defending, why not 500? Well, because at the end it is about the ratio between the attackers and the defenders.

If you have 500 guys defending, you will have 500 guys attacking. So for simplicity's sake, lets look at the one on one principle of the matter, before we extrapolate it 500 times.

If you have to interfere with an opening gateway one gateway at a time, then the defender is ALWAYS going to be at a disadvantage, because the attacker can spin multiple gateways faster than the defender can counter them.

So all the attacker needs, is an army of 100 000 warriors waiting on his Traveling ground. And then he starts spinning gateways six at at time, all opening inside the defender's city.

So now the defender notices the first gateway opening, and immediately tries to counter it. But while he is countering the one, 5 more are open for troops to charge through at a gallop.

Then, as he moves on to the 2nd one, 6 more gateways are opened by the attacker.

For each gateway that the defender tries to block individually, the attacker has time to open another 6.

From the attacking army's point of view, it makes little difference. They simply see a series of 6 gateways opening in front of their front rank in an endless sequence, and they simply charge through continuously.

Every now and then, one of the gateways winks out, as the defender succeeds in closing it. But the attackers simply aim for the numerous gateways that remain open, and are continuing to open 6 at a time, without pause.

Why should the attacker waste time trying to counter the defending channeler's interference in the odd gateway, if he can simply spin new ones faster than they can be identified, targeted and blocked?

No, for the defender to have any hope of success, he has to be able to ward a specific area from gateways. Then, when he and the attacking channeler engage one another, the battle is not about targeting individual gateways - which the defender can never hope to do fast enough - but rather, it is about penetrating the ward that prevents ALL gateways from accessing that particular area.

And this battle can go back and forth, as the ward may be penetrated briefly, allowing a gateway to open for a brief period, before the defender reweaves the ward, cutting off ALL gateways to the area, and thus stranding whatever troops might have gotten through in the window period when the ward was down.

Then those attacking troops will be isolated, and have to hold out long enough for the attacking channeler to penetrate the ward once again, and send reinforcements through new gateways.

Thus, the battle sways backwards and forwards, as the channelers seek to outwit one another.

Defending against one gateway at a time is implausible, given the above example.