It had been working with programmes in Ukraine established during the Crimean crisis in 2014.
Those groups were in "constant contact" with ChildFund and could react quickly to changes, providing relief to people who needed it quickly.
The organisation was focused on protecting children, whether it be making sure refugees had what they needed when they crossed the border or helping them maintain a sense of normality.
There were many ways to assist and people had different needs to be met. Cash assistance could be effective, but many people who were still in Ukraine were better off being provided goods directly.
Supporting local providers in Ukraine was an efficient way of distributing medicine, fuel, food, nappies and other essentials.
Another way to help was providing online education to children still in Ukraine, which introduced some routine into their lives.
Although the spotlight would eventually fade on Ukraine, the damage would not disappear.
"This is life changing for them."
The war would have long lasting impacts on the people, which meant there would be much more work to be done in the years to come, she said.