The move by King Hamed ibn Isa Khalifa to quell a growing uprising is akin to three months of martial law for Bahrain. With hundreds of foreign military and police in the nation to support the government, protesters and their foes set up rival checkpoints.Bahrain's king declared a three-month state of emergency Tuesday in an effort to quell a month-old uprising as rival groups of protesters and gangs set up more checkpoints around the capital.