"open combat" is correct and usable in written English.
This term can be used to refer to any type of physical conflict, such as a fight or war, that is occurring in a public area and is not hidden from the public. For example, "The troops faced off in open combat on the battlefield".
In open combat we never had a chance.
It was open combat on the Egyptian people, courtesy of Mubarak.
Because Kirkuk isn't yet the scene of open combat, the city remains a hidden flaw in the broken Iraqi landscape.
He then launched lightninglike raids on Union supply lines in Kentucky and Tennessee, avoiding open combat whenever possible.
Open combat between the Zapatistas and the government ended after 12 days, and took the lives of some 130 people.
In some games ducking is for the weak; you can wade into open combat instead, and shrug off huge amounts of damage.
The Thomas splint dramatically reduced mortality in the aftermath of open, combat-related fractures [ 54].
"By officially opening combat roles," she added, "more women will be able to advance their careers to the senior ranks and increase the diversity of our military leadership".
In December, Ash Carter, the former Pentagon chief who opened combat jobs to women, said in a report for the Harvard Kennedy School that the question about whether women should register for the draft "arose immediately" after the combat-exclusion policy was rescinded.
Critics of opening combat positions to women have argued for years that integration during deployments could create a distracting, sexually charged atmosphere in the force and that women are unable to perform some of the more physically demanding jobs.
In the 1990s, conservative activist Elaine Donnellyaccused Rep. Patricia Schroeder and "her feminist friends at the Pentagon" of trying to "undermine readiness and morale for the sake of social engineering" by opening combat billets to women "to advance the career ambitions of a few". This idea had staying power: In 2013, retired Army Gen. Jerry Boykinrepeated a version of it to CNN.
