With the Islamic State (IS) becoming stronger and the Syrian conflict escalating, the previously little known and little noticed PYD has achieved a kind of a key position. Looking for partners, the Syrian-Kurdish Party is seen as an appropriate ally by several governments. The PYD receives military support from Syria as well as from Russia [further information] and the USA [further information]. The latter cooperation includes air strikes as well as the supply of arms and ammunition. This leads US-law ad absurdum:
On October 3, 2008, former President George W. Bush adopted an act for the protection of child soldiers, the so-called Child Soldier Prevention Act (CSPA). The law prohibits, among other things, the supply of weapons to governments that either recruit child soldiers or support militias that do so. On the Child Soldiers Prevention Act List of 2015 Syria is, besides other states, named as a state that therefore may not be provided with weapons.
Even if the Syrian government would not recruit children, the CSPA would apply to it due to the regimes armament of the PYD. However, if this is the case, it is undoubtedly against the spirit of the law when the US-government directly provides the PYD and the YPG with weapons.