Israel’s army said on Sunday that the number of women serving in its combat units had reached a record level this year, as it seeks to further boost such participation.

Some 2,700 women enrolled in combat units this year, a military official said, citing numbers released after November’s recruitment period.

Total figures for the previous year were not given, but last year the military projected that some 9.5 percent of enlisted women would serve in combat units in 2017.

That compared with three percent four years earlier.

Israeli law requires men to serve two years and eight months in the military on reaching the age of 18, while women must serve for two.

The increase in female enrolment in combat units has come about both because of changes in society and a shortage of available personnel over reductions in the amount of required service time for men.

The army has also been seeking to increase enrolment for ultra-Orthodox Jews, who are exempt from service if they are engaged in religious study, but has fallen short of the goal.

It had hoped to enrol 3,200 ultra-Orthodox this year, but only 2,850 signed up.