Two years ago, two FBI agents were shot dead while serving a search warrant as part of a child abuse investigation, in one of the darkest days for the agency in recent memory. Now, that investigation has led to the arrests of 98 people in the United States and Australia, authorities from the two countries announced Tuesday.

In a joint effort known as “Operation Bakis,” the Federal Bureau of Investigation (FBI) and the Australian Federal Police (AFP) arrested 98 individuals for allegedly sharing child sex abuse material online, with at least 79 arrests of those arrests carried out by the FBI, NBC News reported. Through their joint efforts, the FBI and AFP rescued 13 children from further harm, the outlet reported. (RELATED: More Than 200 Sex Trafficking Victims Rescued In Nationwide Sweep)

Both Alfin and Schwartzenberger specialized in investigating crimes against children.

FBI special agents Daniel Alfin and Laura Schwartzenberger were killed by automatic gunfire while standing on the doorstep of a Florida apartment in February 2021, preparing to execute a search warrant for child abuse material.

The reclusive IT worker behind the trigger, 55-year-old David Lee Huber, is likely to have seen the FBI through his doorbell camera and fired his assault rifle through the door.

Their killings marked the first time in more than a decade that FBI personnel had been shot dead while carrying out law enforcement work, and drew comparisons to another killing 35 years earlier, when two agents were killed and five injured in a shootout in a Miami suburb.

“They put their lives on the line, and it’s a hell of a price to pay,” President Biden said at the time, while FBI Director Christopher A. Wray said the two agents “exemplified heroism today in defense of their country.”

U.S. authorities arrested 79 people and convicted 43, FBI legal attaché Nitiana Mann told a news conference, while police in Australia said they arrested 19 men.

The Australian investigation began last year after the FBI provided the authorities with information about Australian members of a “technologically sophisticated child abuse network,” who allegedly used the dark web to share — and in some instances create — images and videos of child abuse, according to a statement from the Australian Federal Police.

“The complexity and anonymity of these platforms means that no agency or country can fight these threats alone,” Mann said.

The AFP had allegedly found videos of one of the men, who cannot be identified, abusing a toddler. He had been tracked from the dark web and raided exactly one year after the Florida shooting.

There were allegedly 800 child victims among the 16,000 files police found on the man’s hard drives, along with a “paedophiles handbook” about how to talk to police if caught.

Many of the Australian paedophiles alleged to have been using the network were working in jobs that required a high degree of IT and tech knowledge, the AFP said on Monday evening.

NSW Police worked with the AFP’s Australian Centre to Counter Child Exploitation to investigate and charge five men in NSW.

The people arrested in Australia are between ages 32 and 81, the AFP said, adding that many of them worked in jobs that required a “high degree” of IT knowledge, AFP Cmdr. Helen Schneider told the news conference. Two men who were arrested, both of whom were unnamed, were convicted in June this year, the AFP said; one was a public servant who was sentenced to more than 14 years in prison.

While accessing the dark web is not illegal, it is visible only with special browsers, and some of its participants use it for illicit acts.

Australian police did not rule out further arrests.

Imagine that, a President who goes after pedophiles instead of befriending and partying with them.