Modern warfare?

In today's combat, is the infantry soldier obsolete? Specifically, is world-war II style combat of clearing houses and towns while engaging mes of deadly hostiles gone? With advanced helicopters and air strikes, along with tanks, is modern combat moving towards a different style? Or is it not technology, and it's instead the fact that powers like the US and UK have no real challenge on the battlefield? It's all good with me as long as our guys are safe and we're killing the enemy, I was just wondering if you think there will ever be a time in the future when either a power will emerge to challenge the US and its allies, or battle will shift back to ground-based combat, instead of vehicles or air strikes. Hopefully, we can move away from those days.