Yes, and now we have a President who isn't waiving the sanctions.

http://www.washingtontimes.com/news/2012/aug/8/us-gives-military-aid-to-nations-with-child-soldie/

U.S. gives military aid to nations with child soldiers

By Chuck Neubauer - The Washington Times - Wednesday, August 8, 2012

As the junior senator from Illinois, Barack Obama co-sponsored a bill to restrict the U.S. government’s military support of countries that use children as soldiers. But President Obama has waived those very same sanctions in the name of “national interest,” bypassing the findings of a State Department report and allowing millions of dollars in military aid to flow to countries where children as young as 11 have been conscripted to fight — many of whom have died in one bloody conflict after another.

Mr. Obama’s actions have inflamed an army of critics, who say the waivers have put at-risk children in even greater danger. “The implementation of the law by President Obama has been a big disappointment,” said Jo Becker, children’s rights advocacy director for Human Rights Watch. She said countries won’t get serious about ending the use of child soldiers until they think the United States is serious about withholding aid. “U.S. tax dollars should not go to governments that use child soldiers.”

Mr. Obama, however, has an opportunity to silence his critics as he decides over the next two months whether to withhold aid or give waivers to seven countries named in a new State Department report as using children — both boys and girls — as armed combatants.

The original legislation, a strongly worded bipartisan law known as the Child Soldier Prevention Act, prohibits the U.S. government from giving military financing and training funds to countries identified by the State Department in its annual “Trafficking in Persons” report as having recruited and used children younger than 15 as soldiers in their armed forces or government-supported militias. The bill passed unanimously in both the Senate and the House, and was signed into law by President Bush on Dec. 23, 2008

Obama waives sanctions on countries that use child soldiers October 1, 2012

http://archive.is/ZoWBv

"... But for the third year in a row, Obama has waived almost all U.S. sanctions that would punish certain countries that use child soldiers , upsetting many in the human rights community."

2014: Letter to President Obama regarding the Child Soldiers Prevention Act

NGOs urge prohibitions on military aid to governments using child soldiers

https://www.hrw.org/news/2016/09/14/letter-president-obama-regarding-child-soldiers-prevention-act

2015: Dispatches: Obama Still Arms Governments Using Child Soldiers

https://www.hrw.org/news/2015/10/01/dispatches-obama-still-arms-governments-using-child-soldiers

http://www.vocativ.com/236726/obama-waives-sanctions-5-straight-years-for-countries-using-child-soldiers/

"For the fifth year in a row President Obama has waived U.S. law banning arms sales and assistance to countries using child soldiers in their militaries. Since 2010, his administration has provided nearly $1 billion in military aid to countries including Yemen, Somalia, Nigeria and the Democratic Republic of Congo." 2016 President Obama Fails Child Soldiers

2016: US Again Allows Military Aid to Countries Using Children as Fighters

https://www.hrw.org/news/2016/09/29/president-obama-fails-child-soldiers

During President Obama’s tenure in office, the number of governments using child soldiers has grown from six to ten.