With the Navy's departure, all Biancur Field operations passed over to the Army. Over the years, twenty-four Army Ranger students have died while in training at Camp Rudder, including four who died in a 1955 training accident, two Ranger students who died of hypothermia in January 1977, and another four who died of exposure during cold-weather flooding in February 1995. The 1995 accident was blamed on several factors, including a sudden rise in the water level on Boiling Creek coupled with other unexpected weather changes, such as fog that delayed rescue efforts. Since 1995, more sophisticated measures have been put into place that cast an elaborate, yet invisible, safety net around the students. As students plan ambushes and negotiate swamps, field ambulances are posted minutes away. Evacuation helicopters and rescue boats are on standby and are constantly advised of changing conditions. Before students enter the water, divers check out conditions. An elaborate system to monitor weather and water conditions and depths exists at every step in the exercise. Training remains tough for the men who aspire to be the Army's most elite warriors. The Army has also placed more emphasis on protecting Rangers during training. Camp officials say that with lessons learned from a training accident in 1995, and more resources thanks to allocations from the U.S. Congress, the danger of training casualties has been greatly reduced.