Beth Johnson is accustomed to the uncertainty that comes with being a military wife - picking up and moving her family every three years.

The crippling anxiety that comes with a US government shutdown, however, is not something she is used to.

She is one of the millions of Americans who sighed a deep breath of relief when politicians in Washington agreed to reopen the government earlier this week.

At 43 days, it was the longest shutdown in US history.

But that relief could be short-lived, as the funding agreement expires at the end of January, when Congress will face the same spending challenge once again.