Putin signs annexation laws as Russia calls U.S. military aid for 

Ukraine an "immediate threat" As Vladimir Putin signed laws Wednesday

 formally declaring a huge swath of Ukraine part of Russia, his ambassador in 

Washington called the United States' plan to provide Ukraine with an 

additional $625 million in military aid an "immediate threat" to Russia's

strategic interests. The ambassador said the ongoing provision of

heavy weapons to Ukraine had cemented "Washington's status as 

a participant in the conflict." The latest American military aid

package for Ukraine, announced Tuesday, includes additional "HIMARS"

 advanced rocket systems — weapons credited with helpingthe country gain