The military has decided to cancel any additional purchases of the IED resistant MRAPs. Military.com reports on why the military no longer needs the MRAP:

President Obama’s military strategy, announced in January, envisions a lighter, more agile military focused on action in the Pacific. The heavy, lumbering Mine Resistant Ambush Protected (MRAP) truck — the principal troop carrier in combat for the last five years — is a poor fit for that future.

…the military no longer intends to fight long-term occupations that it was designed for after the U.S. combat mission in Afghanistan ends in 2014.

In a prime example of not learning from history, these are the things people were saying before 9/11 and the invasion of both those countries. Our military was supposed to be fast, nimble, and overwhelming, then we got bogged down in two countries and had to develop an ad hoc program to up-armor humvees and develop new vehicles. A chain is only as strong as the weakest link.