In Strasbourg, the US president cast the war as an international – not just American – problem.
As president heads to France, Europeans ask how best to respond to an ally that is suddenly sending all the signals it has hoped for.
At a G-20 sideline meeting, he affirms the alliance and avoids discussing controversial trade deal.
While President Obama's budget would expand the scope of government the House GOP alternative aims to return government spending to historical levels.
Ahead of G-20, German leader balks at more spending and more debt.
The hawkish prime minister, who presented his new government Tuesday, shows a distinct change in style and tactics – though not substance – since his 1996-99 term.