The militaries of the following countries allow women to serve in combat on the frontline:
Australia, Canada, Denmark, Eritrea, Estonia, Finland, France, Germany, Republic of Ireland, Israel, Lithuania, the Netherlands, New Zealand, Norway, North Korea, Poland, Romania, Singapore, Spain, Sweden, Switzerland and the US.
Take Israel as an example - Caracal Battalion is a female led unit which is 70% women to 30% men. They also have the first tank unit where the crew is 100% female. Caracal normally patrol the border between Israel and Egypt dealing with various threats from terrorism to smugglers, etc.
On 7th October 2023, Caracal Battalion killed 100 Hamas terrorists.
In December 2023, Caracal was called to go in on a special operation. These are highly dangerous military operations.
Caracal Battalion uses the American made M4 Carbine rifle which is a very accurate weapon. That weapon is still used by combat units in the Israel Defence Force whilst all other units have transitioned to the IWI Tavor.
https://m.jpost.com/israel-news/defense-news/article-769134
More recently, in the United States Airforce, a female pilot just became the first to achieve something.
First American female pilot to engage and kill in an air-to-air contact.
https://www.cnn.com/2024/07/22/middleeast/us-navy-first-air-to-air-kill-female-fighter-pilot-intl-hnk-ml/index.html
Male or female - they joined the armed forces, passed their selection tests and served in combat zones.
So I have nothing but respect for them all.