Contractors, Article 4. Classifications. 7058. (a) A specialty contractor is a contractor whose operations as such are the performance of construction work requiring special skill and whose principal contracting business involves the use of specialized building trades or crafts.
The United States declared war on Germany for many reasons. One of them was the sinking on neutral ships and the lusitania which killed about 148 Americans. This was not the immediate cause, another is propaganda which persuaded public opinion.
Why did, in 1846, did America declare war on Mexico. The war with Mexico was known as 'Mr Polk's war'. President Polk declared war on Mexico - or rather the US Congress did - because he wanted to gain lands from Mexico. Exactly which lands became clearer only as the war progressed. The specific dispute which sparked war in May 1846 was the 100-150 mile strip between two rivers, the Nueces and the Rio Grande.