More On Iran

Arlington National Cemetery is tightening its security protocols and warning visitors to report suspicious activity.

The attacks came as the U.S. bolsters forces in the region in response to Iranian threats.

Maj. Gen. Qasem Soleimani had been planning attacks on U.S. troops and diplomats, officials said.

Many argued that it may be too soon to understand the implications and the steps needed to avoid escalated conflict.

More attacks from Iranian-backed militia groups may be possible, officials said.

The Marines are assigned to Special Purpose Marine Air-Ground Task Force-Crisis Response-Central Command.

An American contractor was killed and four U.S. troops wounded in militia attack Dec. 27.

The U.S.-flagged merchant vessel Maersk Kinloss rescued three distressed Iranian mariners.

Iran's military represents a hybrid approach that is being evidenced at the level of near-peer rivals.

The country is continuing its drive to establish regional dominance.