The change, the first significant overhaul in almost 20 years, comes as the Navy grapples with major shipboard problems over the years that include failures to treat sexual assaults, fires, and deadly collisions and the growth of extremism within the ranks.
Rear Adm. Jennifer Couture, who heads the Naval Service Training Command, told the Associated Press that the two additional weeks of classes would reinforce the behavior wished in a U.S. naval officer.
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"We're telling our recruits ... here are all of the things that we expect you to do, and here's how we expect you to behave and act," she announced, continuing that it involves treating people with respect and holding peers accountable.
"We believe very strongly that those types of behaviors are directly impacting our fighting readiness and the performance of our sailors."
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The two weeks will be devoted to the "Sailor for Life" course phase where recruits would take in mentorship classes focused on dodging bad behavior.
It will train sailors on how to keep level-headed and react to life-threatening situations like fires and collisions.
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Couture announced that the changes came after Navy leaders realized they needed to reinforce training and character development skills after problems in recent years.
The changes were first suggested in 2017 after two ships collided in the Pacific, killing 17 sailors. Years prior, the Navy announced that lack of sleep and preparedness had been causing many crashes out at sea.
Then in 2020, Navy officials discovered that sweeping failures prevented the saving of the $1.2 billion USS Bonhomme Richard, which burned for five days off the shore of San Diego in July.
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Although the fire was supposedly started by sailor Ryan Sawyer Mays, who faces charges for the crime, Navy investigators announced the crew was "inadequately prepared" to battle the blaze due to lapses in training.
The Navy also wants to curb suicide among its officers as well as stop sexual assaults and the mishandling of sexual harassments cases.
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The Navy lost 66 active-duty sailors to suicide in 2020, with a suicide rate of 19.3 deaths per 100,000 service members.
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The U.S. military as a whole reported over 20,000 instances of "unwanted sexual contact" in 2018, a 38 percent growth from the last report in 2016.
Last week, the Navy relieved Cmdr. Richard Zamberlan and Lt. Cmdr. Phillip Lundberg of the Littoral Combat Ship USS Montgomery on duty "due to a loss of confidence in their ability to command."